道治理用的除磷劑是對城市水源水混凝除濁萄和瓶頸 聚丙烯酰胺市場亂象
經(jīng)歷了太多啥都明白了 市場從環(huán)保檢查停產(chǎn)漲價到現(xiàn)在有貨沒市場 市場需求減小的原因在哪里呢 就是因為生意干不了啊 洗沙洗煤都要面發(fā)展政策 企業(yè)轉(zhuǎn)型去除高耗能地產(chǎn)了抵消的粗狂發(fā)展企業(yè) 開始新能源新環(huán)保 這就使得我們的業(yè)務(wù)員到了客戶現(xiàn)場實驗選型上機配型聚丙烯酰胺陰離子 然后就沒有下文了 有很多企業(yè) 2020年是停產(chǎn)一年啊 這是什么情況 醉了 市政法治的官網(wǎng)改造 加上農(nóng)村污水廁所所革命到時創(chuàng)造了新一批的市場發(fā)展科技 更多的 采用一體化設(shè)備這就衍生出復(fù)合碳源 葡萄糖醋酸鈉 包括液體醋酸鈉的市場空間增大 不再是一起的粗放排放壓濾污泥 都開始做循環(huán)水再利用 澆地種莊稼這種工作
河南安家凈把握了這次機遇承接了河南境內(nèi)很多家環(huán)保企業(yè)的污水處理項目 特別是農(nóng)村污水排放處理工程 和中原環(huán)保公司達成長期合作關(guān)系為農(nóng)村環(huán)境改善作出貢獻
糖酸鈉應(yīng)用:
混凝土是一種組合物料,由水泥、集料、摻合劑和水AM聚丙烯酰胺的合成及工藝物理特性:PAM由丙烯腈與水在骨架銅催化劑作用下直接反響生成聚丙烯酰胺再經(jīng)離子交流聚合單調(diào),等工序即得廢品,工藝簡介如下:催化劑:催化水合CH2=CHCN+H2O 濕度 CH2=CHCONH2 聚合nCH2=CHCONH2-引發(fā)劑-CH2CHCONH2
聚丙烯酰胺工業(yè)用處:聚丙烯酸胺(PAM)分子量高、水溶性好、可調(diào)理分子量,并能夠引進各種離子基團以得到特定的性能。低分子量是分散資料有效增調(diào)劑或穩(wěn)定劑,高分子量是重要的絮凝劑,它能夠制造出親水而水不溶性的凝膠,它對許多團體外表和溶解物質(zhì)有良可以作為凈水藥劑使用,也可以在造紙領(lǐng)域被當做助留劑使用,部分造紙使用草漿纖維較短,細胞雜質(zhì)較高,導(dǎo)致了紙張強度較差,抄紙過程中濾水困難。對于此問題處理辦法有兩種:機械截留和膠體絮凝。
機械截留類似于過濾作用,它適用于紙張中較長部分纖維,纖細組分隱藏高的原因無法由此說明,助留劑的助留作用也無法用此解釋;
膠體絮凝作用為:凝聚作用和絮凝作用。分子量較小或者無機鹽、電荷密度較高的聚合物使膠體懸浮液穩(wěn)定性喪失從而發(fā)生絮聚作用稱之為凝聚作用,經(jīng)過電荷中和、異相凝聚和補綴作用幾種方法產(chǎn)生的沉積物。聚合氯化鋁是指聚凝作用中所提到的無機鹽。電荷密度較高的聚合物。
運用聚合氯化鋁處理了造紙進程由酸性改為中、堿性規(guī)模,紙漿中的陰離子雜質(zhì)的問題,紙機操作以及紙質(zhì)量的一系列問題,聚合氯化鋁帶有陽電荷,可以有效的控制陰離子的作用,有利于紙張濾水性 改善,聚合氯化鋁極容易在纖維外表形成吸附,還可以將帶有負電荷的填料和纖維吸附,使細料的藏著率有效的提高,漿料的濾水功效得到進一步的改善好的粘附力。由于以上性能PAM普遍應(yīng)用于絮凝、增稠、減阻、擬膠、粘結(jié)、阻垢等范疇 。
陰離子聚丙烯酰胺依據(jù)不同用處和用戶對產(chǎn)品性能的央求,可選用不同分子量運用。
在工業(yè)廢水處置中,特別是關(guān)于懸浮顆粒、較粗、濃度高、粒子帶陽電荷,水的PH值為中性工堿性的污水如鋼鐵廠廢水,電鍍廠廢水,冶金廢水,洗煤廢水等污水處置效果很好。
在飲用水處置。我國很多自來水廠的水源自江河泥少及礦物質(zhì)含量高,比擬混濁,雖經(jīng)過沉淀處置,但仍達不到央求,需求投加絮凝劑,才干使水質(zhì)變清,很多自來水廠采用無機絮凝劑,但投加量大,構(gòu)成污泥量增大效果不好,采用陰離子聚丙烯酰胺作絮凝劑,投加量是無機絮凝的50分之一但效果是無機絮凝劑的幾倍至幾十倍,特別是我公司消費的聚丙烯酰胺,剩余單體已抵達食品級(小于0.05%),接近國外對處置飲用水更為合適,關(guān)于有機物污染嚴重的江河水和陰離子聚丙烯酰胺配合運用效果更好。
聚丙烯酰胺用作淀粉廠及酒精廠的流失淀粉及酒糟的回收。往常很多淀粉廠排出的廢水內(nèi)淀粉很高,排放之后影響環(huán)境,糜費資源,投加PAM,使淀粉沉淀,沉淀物經(jīng)壓濾機壓濾變成餅類可作飼料,酒精廠大量的酒糟就是采用這種工藝加工的,黑龍江某酒精廠就是聚丙烯酰胺作絮凝劑,對酒糟中止回收的而且獲得了很大的經(jīng)濟效益。
聚丙烯酰胺用作油田調(diào)剖堵水的堵水劑,三次采油的驅(qū)油劑。
聚丙烯酰胺用作造紙助劑,PAM在造紙方面用處很普遍,可作為長纖維造紙分散劑,干濕加強劑,助留,助濾劑及造紙廢水的絮凝劑等。
最新型的水處置劑聚丙烯酰胺,在很多場所處置污水和上水時,陰離子聚丙烯酰胺和陽離子聚丙烯酰胺配合運用要比單獨運用一種離子型聚丙烯酰胺產(chǎn)生十分顯著和協(xié)同效應(yīng),PAM對降低外表張力的才干要遠遠大于同條件下陽離子或陰離子單獨存在的才干,為抵達降低外表張力的央求,需求同時運用陰離子和陽離子聚丙烯酰胺,便兩者如運用不當,會產(chǎn)生白色沉淀物,失去運用效果 。而PAM具有兩性離子的特性,它能夠完成陰離子、陽離子的配合協(xié)同作用,面沒有任何沉淀物的產(chǎn)生,特別是對水質(zhì)狀況比擬復(fù)雜或水的性質(zhì)經(jīng)常變化的,運用PAM作為處置絮凝劑更為便當,效果更好。
在污水預(yù)處置中采用的污泥取自以錢塘江水為水源的沉淀池,該水廠以聚合氯化鋁PAC為絮凝劑。污泥經(jīng)自然濃縮到含固率為2.7%~2.8%,經(jīng)測定,污泥中有機物含量為12.1%,sj如含量為52.1%,Al。含量為20.2%。 PAM有陽離子型、陰離子型和非離子型三品種型。非離子型PAM溶解速度較慢,普通不用于污泥預(yù)處置,因而實驗僅選用兩種有代表性的陽離子聚丙烯酰胺和陰離子聚丙烯酰胺。陽離子型PAM分子量1200萬,丙烯酰胺單體含量0.012%。陰離子型PAM分子量1250萬,丙烯酰胺單體含量0.013%。兩種PAM配制濃度均為0.05%%,冰箱冷藏24h后運用。
(1)PAM預(yù)處置污泥取lOOml污泥,放入300ml的燒杯中,采用六聯(lián)攪拌機以1130rpm的轉(zhuǎn)速快 速攪拌30s后疾速投加~定量制備好的PAM,繼續(xù)以lOOrpm的轉(zhuǎn)速攪拌30s, 然后降低攪拌機轉(zhuǎn)速到20~30rpm慢速攪拌60s促進絮凝。分別測定預(yù)處置后污泥的比阻、毛細吸水時間(CST)、過濾液的粘度和離心液的粘度。
(2)比阻按考克力(Coackley)提出的實驗辦法,采用布氏漏斗實驗。布氏漏斗的直徑為80mm,濾紙采用由70mm定量中速濾紙,實驗真空度控制為0.01MPa。實驗反復(fù)3次取均勻值。
(3)為了降低比阻,進步污泥脫水效果,在污泥脫水前普通均需對污泥中止預(yù)處置。污泥預(yù)處置的辦法有冰凍一凍結(jié)預(yù)處置、熱處置、酸處置、堿處置、石灰預(yù)處置和高分子絮凝劑預(yù)處置等,其中高分子絮凝劑聚丙烯酰胺(PAM) 預(yù)處置是目前國內(nèi)外采用最普遍的預(yù)處置辦法。
(4) 聚丙烯酰胺絮凝劑預(yù)處置普通占整個污泥處置費用較高的比例,因而,聚丙烯酰胺的優(yōu)化選擇加率的合理肯定對降低污泥預(yù)處置費用相當關(guān)鍵。對選擇聚丙烯酰胺的實驗辦法的研討已展開多年,包括比阻、CST值、污泥流變性、分別液粘度、活動電流等。The synthesis and process physical properties of AM polyacrylamide: PAM is prepared by direct reb of acrylonitrile with water under the b of framework copper catalyst, and then dried by ion exchange polymerization. The process is as follows: catalyst: catalytic hydration CH2 = CHCN + H2 humidity CH2 = CHCONH2 polymerization nCH2 = CHCONH2 - initiator - CH2CHCONH2
Industrial uses of polyacrylamide: Polyacrylamide (PAM) has high molecular weight, good water solubility, adjustable molecular weight, and can introduce various ionic groups to obtain specific properties. Low molecular weight is an effective additive or stabilizer for dispersing materials. High molecular weight is an important flocculant. It can produce hydrophilic and water-insoluble gel, which has good adhesion to many groups of surface and dissolved substances. Because of the above properties, PAM is widely used in flocculation, thickening, drag reduction, glue imitation, bonding, scale inhibition and other fields.
Anionic polyacrylamide can be used in different molecular weights according to different uses and user's requirements for product perbance.
In industrial wastewater treatment, especially for suspended particles, coarser, high concentration, positive charged particles, neutral and alkaline wastewater such as iron and steel plant wastewater, electroplating plant wastewater, bllurgical wastewater, coal washing wastewater and other wastewater treatment effect is very good.
In drinking water treatment. The water source of many Waterworks in our country is low in mud and high in mineral content, which is turbid. Although it has been treated by precipitation, it still can not meet the requirements. Flocculants are needed to make the water quality b. Many waterworks use inorganic flocculants, but the amount of inorganic flocculants is large, resulting in poor effect of sludge increase. Anionic polyacrylamide acrylamide monomer was 0.012%. The molecular weight of anionic PAM was 12.5 million and the content of acrylamide monomer was 0.013%. The concentration of two kinds of PAM is 0.05%. They are used after refrigeration for 24 hours.
(1) PAM pretreatment sludge takes lOml sludge and puts it into a 300 ml beaker. Six-unit mixers are used to mix at 1130 RPM speed for 30 seconds, and then the PAM is added to the sludge quickly and quantitatively. The PAM is stirred at lOOrpm speed for 30 seconds, then the speed of the mixer is reduced to 20-30 rpm and the slow stirring speed is 60 seconds to promote flocculation. The specific resistance of pretreated sludge, capillary water absorption time (CST), the viscosity of filtrate and the viscosity of centrifuge were measured.
(2) The specific resistance is tested by Brinell funnel according to the test b proposed by Coackley. The diameter of Brinell funnel is 80 mm. The filter paper is made of 70 mm medium speed filter paper. The vacuum degree of the test is controlled to 0.01 MPa. The experiment was repeated three times to get the average value.
(3) In order to reduce specific resistance and improve sludge dewatering effect, sludge should be pretreated before sludge dewatering. Sludge pretreatment bs include freeze-thaw pretreatment, heat treatment, acid treatment, alkali treatment, lime pretreatment and polymer flocculant pretreatment. Polymer flocculant polyacrylamide (PAM) pretreatment is the most widely used pretreatment b at home and abroad.
(5)實驗研討標明:投加陽離子型和陰離子型PAM后污泥比阻都降低近2個數(shù)量級,顯著改善了污泥的脫水性能。陰離子率為0.3kg/T干污泥,陽離子聚丙烯酰胺絮凝污泥,可見陰離子型PAM的投加率遠小于陽離子型PAM的投加率,且陰離子型PAM的價錢約是陽離子型PAM價錢的1/2,故陰離子型PAM可作為自來水廠污泥預(yù)處置藥劑的首選。
(6)依據(jù)CST值變化肯定PAM最投加率與測定比阻得到的最投加率分歧。并且CST值與比阻之間存在線性相關(guān)關(guān)系,比阻值越大,CST值越大,因而能夠采用CST值來近似替代污泥比阻反映污泥的脫水性能。與比阻相比,cST值測定快速、煩瑣,不但適用于實驗室研討,還可用于消費現(xiàn)場,快速理解污泥脫水性能的變化,使操作人員及時調(diào)楚PAM投加率,儉省藥劑費。is used as flocculant, and the dosage is inorganic flocculant. One fiftieth of the flocculants, but the effect is several times to dozens of times that of inorganic flocculants. Especially the polyacrylamide produced by our company, the residual monomers have reached the food grade (less than 0.05%), close to the advanced level abroad, non-toxic, more suitable for the treatment of drinking water, and better for the use of organic pollutants polluted river water and anionic polyacrylamide.
Polyacrylamide is used to recover lost starch and distiller's grains in starch and alcohol factories. At present, the starch in the waste water discharged by many starch factories is very high. After discharging, it affects the environment, wastes resources, and adds PAM to make starch precipitate. The precipitate is filtered by pressure filter to become cake and can be used as feed. A large number of distillers'grains in the alcohol factories are processed by this process. A certain alcohol factory in Heilongjiang Province uses polyacrylamide as flocculant, which recycles the distillers' grains and obtains a great deal of experience. Economic benefits.
Polyacrylamide is used as water shutoff agent for profile control and water shutoff in Oilfield and oil displacement agent for tertiary oil recovery.
Polyacrylamide is used as paper-making additive. PAM is widely used in paper-making. It can be used as long fiber paper-making dispersant, wet and dry reinforcing agent, retention aid, filter aid and flocculant of paper-making wastewater.
The latest type of water treatment agent polyacrylamide, when treating sewage and water in many occasions, the combination of anionic polyacrylamide and cationic polyacrylamide has a very significant and synergistic effect than using one kind of ionic polyacrylamide alone. The ability of PAM to reduce surface tension is much greater than the ability of cations or anions existing alone under the same conditions. For the requirement of low surface tension, both anionic and cationic polyacrylamide need to be used at the same time. If they are used improperly, white precipitates will be produced and the effect of using them will be lost. PAM has the characteristics of amphoteric ions. It can complete the coordination of anions and cations. There is no precipitate on the surface. Especially, it is more convenient to use PAM as a flocculant because of the complex water quality or the changeable nature of water.
The sludge used in sewage pretreatment is taken from the sedimentation tank with Qiantang River water as its source of water, and PAC is used as a flocculant in the water plant. The sludge was naturally concentrated to a solid content of 2.7%-2.8%. The organic matter content in the sludge was 12.1%, SJ content was 52.1%, Al content was determined. The content was 20.2%. There are three types of PAM: cationic, anionic and nonionic. Non-ionic PAM dissolves slowly and is generally not used for sludge pretreatment. Therefore, only two representative cationic polyacrylamides and anionic polyacrylamides are selected in the experiment. The molecular weight of cationic PAM was 12 million and the content of
(7)不管是陽離子聚丙烯酰胺絮凝劑還是陰離子聚丙烯酰胺絮凝劑,隨著投加率的增加,濾液和離心液粘度都呈現(xiàn)與比阻和CST值類似的變化規(guī)律,呈現(xiàn)了明顯的最小值,而且該最小值對應(yīng)投加率與污泥比阻和CST值實率根本分歧。該加率快速、簡單,而且還有可能用作消費上在線控制PAint最 佳投加率的參數(shù),但其在消費上的應(yīng)用還需做進一步的實驗研討。
制成。混凝土是所有人工制造的物的?;炷林兴姆种羌希欢谛缘鹊?。通常在水泥中同時使用數(shù)種摻合劑,各種不同的摻合劑在一些應(yīng)用中能互相強化。
葡萄糖酸鈉可以作為摻合劑用在混凝土中,它在混凝土中的功能如下: 減水劑和緩凝劑葡萄糖酸鈉一般是單獨使用,但是也可以與其它緩凝劑如碳水化合物和磷酸鹽配合起來使用。葡萄糖酸鈉是一種結(jié)晶的粉末。是在妥善規(guī)定和控制的條件下生產(chǎn)出來的。此化合物是化學(xué)純的并且無腐蝕性。質(zhì)量是恒定的。這些特點能保證它在應(yīng)用中有可靠的和重復(fù)性的結(jié)
溶解性:極易溶于水,略溶于酒精,不能夠溶Sodium gluconate application:
Concrete is a composite material made of cement, aggregate, admixture and water. Concrete is the most abundant of all manufactured materials. Three quarters of concrete is aggregate, but the most active component in concrete is cement slurry. The properties and properties of concrete mainly depend on the properties of cement slurry. The admixtures in concrete can provide some beneficial effects, such as accelerating solidification, delaying solidification, making air bubbles, reducing water consumption and increasing plasticity, etc. Usually several admixtures are used in cement at the same time, and different admixtures can reinforce each other in some applications.
Sodium gluconate can be used as admixture in concrete. Its function in concrete is as follows: water reducer and retarder sodium gluconate are usually used alone, but can also be used in combination with other retarders such as carbohydrates and phosphate. Sodium gluconate is a crystalline powder. It is produced under the conditions of proper regulation and control. The compound is chemically pure and non-corrosive. The mass is constant. These characteristics can ensure that it has reliable and repeatable knots in application.
Solubility: extremely soluble in water, slightly soluble in alcohol, not ether
Use:
使用:
用作鋼鐵外表清洗劑:
鋼鐵外表如需要鍍缽、鍍鉻、鍍錫、鍍鎳以習(xí)慣特別用處時,如制作馬口鐵,鍍鋅板,外表鍍鉻(電度)等,其鋼坯外表均需經(jīng)過嚴格清洗,使鍍層物與鋼鐵外表結(jié)實結(jié)合,這時候其清洗藥劑中添加葡萄糖酸鈉將會到達十分理想的效果。這一點已經(jīng)被國際上制作馬口鐵的大公司所證實。
用作水泥摻合劑:
水泥中添加一定數(shù)量葡萄糖酸鈉后,可增加混凝土的可塑性和強度,且有阻滯作用
即推延混凝土的開始與終究凝固時期,例如添加0.15%的葡萄糖酸鈉,可將 混凝土的初凝 固時刻延伸10倍以上,也就是將混凝土的可塑時刻從幾小時延伸至幾天,而不影響其牢 度??伤苄耘c推遲開始凝固時刻在混凝土作業(yè)中是非常重要的問題,如在高溫度季節(jié)施工及大型的工程作業(yè)中,推遲開始凝固時刻則是個難題,葡萄糖酸鈉可滿意解 決這個問題。別的高溫時膠接油井是比較困難的,添加了葡萄糖酸鈉后的混凝土在170℃高溫下,在幾個小時內(nèi)可塑,因而也能滿意解決上述問題。因而葡萄糖酸 鈉作為水泥摻合劑在國外已很多使用于重要的建筑工程,如中東的很多橋梁工程中。但是我們國內(nèi)在這方面使用也還未推廣使用,據(jù)說有在造紙廢水中提煉纖維素磺 酸鈉,其效果與葡萄糖酸鈉根本是不可相提并論的。
此外還可在電鍍,膠卷制作工業(yè)中使用。
作為一種多羥基羧酸型優(yōu)秀的緩蝕阻垢劑葡萄糖酸鈉,由于具有上述諸多特異性質(zhì),如能在使用技術(shù)上肯下功夫,必將會被開發(fā)成一個很大的工業(yè)。
Used as steel surface cleaner:
When steel appearance needs to be plated with bowl, chromium, tin and nickel for special use, such as tinplate, galvanized sheet and chromium plating, the billet appearance needs to be cleaned strictly, so that the coating can be firmly combined with the steel appearance. At this time, the addition of sodium gluconate in the cleaning agent will be very reasonable. Think about the effect. This has been confirmed by large international companies that make tinplate.
Used as cement admixture:
When a certain amount of sodium gluconate is added to cement, the plasticity and strength of concrete can be increased, and the effect of retardation can also be found.
That is to say, delaying the beginning and final solidification period of concrete, such as adding 0.15% sodium gluconate, can extend the initial solidification time of concrete more than 10 times, that is, to extend the plastic time of concrete from several hours to several days without affecting its fastness. Plasticity and delaying the beginning of solidification are very important problems in concrete operation. For example, in high temperature season construction and large-scale engineering operation, delaying the beginning of solidification is a difficult problem. Sodium gluconate can solve this problem satisfactorily. It is difficult to bond oil wells at other high temperatures. The concrete with sodium gluconate can be plastic in a few hours at 170 C, so it can solve the above problems satisfactorily. Sodium gluconate, as a cement admixture, has been widely used in important construction projects abroad, such as many bridges in the Middle East. However, the use of sodium cellulose sulfonate has not been promoted in China. It is said that sodium cellulose sulfonate is extracted from paper-making wastewater, and its effect is not comparable with sodium gluconate.
In addition, it can also be used in electroplating and film making industry.
Sodium gluconate, as an excellent corrosion and scale inhibitor of polyhydroxycarboxylic acid type, will be developed into a large industry if it can make technical efforts due to its many specific properties mentioned above.
處理及除磷的物品??梢栽趯Τ鞘兴此炷凉崽幚硗瑫r,到達深度除磷意圖。
從而將處理后飲用水中的磷含量降至界限值以下,不需要改動原水處理流程,不需要增設(shè)大型水處理構(gòu)筑物,簡便易行,經(jīng)濟實用,可獲得顯著的社會和經(jīng)濟效益。
河道治理用的除磷劑運用方法量投加不會造成不良影響的多年來聚合氯化鋁已發(fā)展成為技術(shù)成熟、市場銷量大的絮凝劑,并有逐步取代傳統(tǒng)絮凝劑的趨勢。西歐各國于1976年開始生產(chǎn)聚合氯化鋁,用作工業(yè)污水處理絮凝劑;美國、加拿大已于1983年批準將其用于城市給水和工業(yè)污水處理。 聚合氯化鋁是水處理混凝劑的常用藥劑,水處理效果顯著,在飲用水、工業(yè)污水凈化中有著至關(guān)重要的作用。我們常用到的聚合氯化鋁含量有:26%、28%、30%。聚合氯化鋁含量的不同,用途也不同,相對應(yīng)的聚合氯化鋁價格也不同
水污染的危害顯而易見聚合氯化鋁合理攻堅管理水污染.
4個鄉(xiāng)鎮(zhèn)進行調(diào)查,每天的排放量達365.3億噸.其間工業(yè)廢水達成協(xié)議5.5億噸. 這些廢水絕大部分未經(jīng)處理就直接排放, 污染了江河湖海. 水污染的危害是不是顯而易見的.水體污染,水質(zhì)惡化對人體健康和人類日子,出產(chǎn)都帶來了嚴重的危害. Over the years, polyaluminium chloride has developed into a flocculant with mature technology and large market sales, and has gradually replaced the traditional flocculant. Western European countries began to produce polyaluminium chloride as flocculant for industrial sewage treatment in 1976, and the United States and Canada approved its use in urban water supply and industrial sewage treatment in 1983. Polyaluminium chloride (PAC) is a commonly used coagulant in water treatment. Its water treatment effect is remarkable, and it plays an important role in drinking water and industrial sewage purification. The content of polyaluminium chloride is 26%, 28% and 30%. The content of polyaluminium chloride is different, the use is different, and the corresponding price of polyaluminium chloride is also different.
It is obvious that polyaluminium chloride (PAC) can manage water pollution reasonably.
The state has investigated 854 townships and villages, with a daily discharge of 36.53 billion tons. In the meantime, an agreement has been reached on 550 million tons of industrial wastewater. Most of these wastewater is discharged directly without treatment and pollutes rivers, lakes and seas. Is the harm of water pollution obvious? Water pollution and deterioration of water quality have brought serious harm to human health and human life and production?
When green and turbulent forests are replaced by endless desert and yellow dust, white clouds floating carelessly in the blue sky are replaced by rolling black smoke, and the ozone layer that shelters the earth from wind and rain is damaged by relentless Freon, I can bly hear the cries of forests, the sorrow of white clouds and the sigh of the ozone layer.
The demand of polyaluminium chloride flocculants at home and abroad is increasing rapidly. Especially in water treatment, the traditional flocculants have been gradually replaced by polyaluminium chloride flocculants and become mainstream flocculants. A large number of application practices have proved that the use of polychlorination rate instead of traditional iron and aluminium salt coagulants can significantly improve the purification efficiency of water plants, reduce the cost of treatment, and improve the quality of effluent. Polyaluminium chloride is used as purifier for daily drinking water and industrial sewage (such as oily sewage, printing and dyeing sewage, paper-making sewage, etc.). In addition, it is also widely used in fine casting, paper making and leather making. The effect of high turbidity water is particularly obvious; without alkaline additives or other coagulant aids, it is suitable for wide water quality, fast and large alum comb, high quality, easy sedimentation, high safety of clean water, low corrosiveness and low labor intensity of workers.
It produces high-efficiency polyaluminium chloride, high-efficiency aluminium ferric chloride, high-efficiency polyferric sulfate, high-efficiency basic aluminium chloride, polyacrylamide (yin, yang, non-ionic), activated carbon and various filter materials. The products are widely used in domestic water companies, mines, paper-making, printing and dyeing, steel mills, distilleries and other enterprises, and solve the problems of water pollution and secondary treatment and reuse in many enterprises.
Polyaluminium chloride road nature is around us, green is around us, environmental protection is in our hearts, brains, hands, bs. We can't say what we can do to protect the environment, but at least you know it initially, you feel our nature initially, just for the idea of us together. Sowing green is the science in bathroom that seeds waste surplus and environmental problems from drinking pure water to recycling of waste, recycling of waste and comprehensive utilization of resources. Every effort should be made to manage the environment and all the people will work together to overcome the difficulties.
當一片片綠波洶涌的森林被無垠的荒漠黃塵所替代,當無憂地在湛藍的天空飄揚的白云被漫天滾滾黑煙所替代,當為地球遮風(fēng)擋雨的臭氧層被無情的氟里昂所損壞,我清楚聽見了森林的哭泣,白云的哀痛,臭氧層的嘆氣。
聚合氯化鋁絮凝劑在國內(nèi)外的需求量日益激增,特別在給水處理中劑已逐步替代傳統(tǒng)的凝聚劑而成為干流絮凝。大量的應(yīng)用實踐證明,使用聚合氯化率替代傳統(tǒng)的鐵、鋁鹽混凝劑,可明顯進步水廠的凈化效能、降低處理本錢、改進出水水質(zhì)。聚合氯化鋁作為日子飲用水和工業(yè)污水(如含油污水、印染、造紙污水、等處理的凈化品。以及高霉性重金和含氟污水的處理等;此外,在精細鑄造、造紙、制革等方面亦有廣泛的用處。對高濁度水的作用特別明顯;可不加堿性助劑或其它助凝劑,適宜水質(zhì)規(guī)模寬、礬花構(gòu)成快而大、質(zhì)密、易沉降,清水安全性高;腐蝕性小,工人勞動強度低。
出產(chǎn)高效聚合氯化鋁,高效氯化鋁鐵,高效聚合硫酸鐵,高效堿式氯化鋁,聚丙烯酰胺(陰,陽,非離子),活性炭及各種濾料等產(chǎn)品,產(chǎn)品廣泛用于國內(nèi)自來水公司,礦山,造紙,印染,鋼廠,酒廠等企業(yè),解決了眾多企業(yè)水污染和二次處理再利用的難題。
聚合氯化鋁道大自然就在我們周圍,綠色就在我們身邊,環(huán)保就在我們的心中,腦中,手中,舉動中。我們不能說我們能為環(huán)保做什么,但最起碼你初步在知道它,初步在感觸我們的大自然,只為著我們一起的理念。播種綠色就是播種希望 廢物過剩與環(huán)境問題 從喝純水想起 廢物的收回及資源化綜合利用廢物的收回及資源化綜合利用浴室中的科學(xué)。想方設(shè)法管理環(huán)境,眾志成城合力攻堅。
,畢竟鐵也是微生物生長所需要的微量元素。但是如果投加量過大,則會使污泥活性收到影響,還有疑問可以到環(huán)保.通交流。
生化末端 沒有影響,何況少量的鐵鹽能夠?qū)hosphorus removal agent for road treatment is a kind of material for coagulation and turbidity removal of urban water source and phosphorus removal. It can reach the intent of deep dephosphorization at the same time of coagulation and turbidity removal of urban water source.
Thus, the phosphorus content in treated drinking water can be reduced to below the threshold value, without changing the original water treatment process, without adding large water treatment structures, which is simple, economical and practical, and can achieve remarkable social and economic benefits.
The amount of phosphorus removal agent used in river regulation will not cause adverse effects. After all, iron is also a trace element needed for microbial growth. However, if the dosage is too large, the sludge activity will be affected. There are still doubts about environmental protection and communication.
There is no effect on the biochemical end, let alone a small amount of iron salts.
懸浮物上漂
1、操作不當,有的是不專業(yè)的人員在實驗中運用了不當手法,加入聚合氯化鋁后,攪拌過急過慢都不行,初次實驗,要有專業(yè)的水處理師從旁協(xié)助,這是很重要的一點。
2、加聚合硫酸鐵的量沒有控制好,(加藥過多或過少)這種情況,最容易出現(xiàn)懸浮物上漂。
使用前,將本產(chǎn)品按一定濃度(10-30%)投入溶礬池,注入自來水攪拌使之充分水解,靜置至呈紅棕色液體,再兌水稀釋到所需濃度投加混凝。水廠亦可配成2-5%直接投加,工業(yè)廢水處理直接配 成5-10%投加。 b、投加量的確定,根據(jù)原水性質(zhì)可通過生產(chǎn)調(diào)試或燒杯實驗視礬花形成適量而定,制水廠可以原用的其它藥劑量作為參考,在同等條件下本產(chǎn)品與固體聚合氯化鋁用量大體相當,是固體硫酸鋁用量的 1/3-1/4。如果原用的是液體產(chǎn)品,可根據(jù)相應(yīng)藥劑濃度計算酌定。大致按重量比1:3而定。
關(guān)于污水處理使用聚合硫酸鐵上水層出現(xiàn)漂浮物的原因以及解決方法
污水處理1. Improper operation, some non-professional personnel in the experiment used improper techniques, adding polyaluminium chloride, stirring too fast or too slow can not, the first experiment, there must be professional water treatment assistant, this is a very important point.
2. The amount of polyferric sulfate added is not well controlled (too much or too little dosage). In this case, suspended solids are most likely to float.
Before use, the product was put into the alum bath at a certain concentration (10-30%) and stirred with tap water to make it fully hydrolyzed. The product was put into a red-brown liquid and diluted with water until the required concentration was added and coagulated. Waterworks can also be added 2-5% directly, and industrial wastewater treatment can be added 5-10%. B. The determination of dosage depends on the proper amount of alum bed by production debugging or beaker experiment according to the nature of raw water. The other dosage used in water plant can be used as reference. Under the same conditions, the dosage of this product is approximaby equal to that of solid polyaluminium chloride, which is 1/3-1/4 of that of solid aluminium sulfate. If the original liquid product is used, it can be calculated according to the concentration of the corresponding agent. It depends roughly on the weight ratio of 1:3.
Reasons and Solutions for Floating Matter in the Upper Water Layer of Polyferric Sulfate Used in Sewage Treatment
3、加聚合硫酸鐵的量對了,但是廢水的
現(xiàn)在市面上聚合硫酸鐵的質(zhì)量參差不齊,相對于質(zhì)量好一些的聚合硫酸鐵在使用過程中,出現(xiàn)懸浮物的幾率會很低的,好一些的聚合硫酸鐵幾乎是沒有水不溶物的,所以產(chǎn)品質(zhì)量也是非常重要。微生物活性有促進作用,就是出水色度有影響
將化學(xué)除磷劑投加于生化池的后面,這樣便可以完全避免水中多種物質(zhì)與除磷劑發(fā)生反應(yīng),消耗藥劑用量.且不會降低生化池的進水有機碳濃度,影響微生物的脫氮除磷效果。同時還可避免過多投加除磷劑,也會使殘余的藥劑進入生化系統(tǒng)中,對微生物生長造成影響。
將除磷絮凝劑投加于好氧池的出水口端,二沉池的前面投加除磷劑則可以大量減少除磷藥劑的使用量,這是廢水在生化處理的過程中已去除水中大部分磷,并將偏磷、有機磷轉(zhuǎn)化為可通過混凝處理的正磷,大大提高除磷效果和減少除磷劑投加量,減少污泥產(chǎn)量、減少污泥中的磷含量。 所以,化學(xué)除磷藥劑一般投加于生化后,二沉池前,節(jié)省廢水除磷成本和提高達標率。?
運用時可將本產(chǎn)品直接投加,或先參加溶解罐,濃度為10~20%,拌和,用泵投加到反響池。本產(chǎn)品適用的pH值規(guī)模廣,在酸性條件下運用效果尤佳,運用量約為100~1000ppm(即0.1~1公斤/噸廢水),依據(jù)廢水中磷酸根的含量不同其用量有所差異,詳細用量一般通過試驗斷定。
試驗時取一定量的原水,參加適量的本產(chǎn)品(如500ppm),將廢水pH值調(diào)節(jié)至7~8,www.hnldscl.com參加少數(shù)聚丙烯酰胺PAM絮凝沉積,過濾取上清液測定磷的含量。(如需處理重金屬,用上清液進行二次處理即可。)AC/PAM與除磷劑攪拌后的反應(yīng)?使用時可將本產(chǎn)品直接投加,或先參加溶解罐,濃度為10~20%,拌和,用泵投加到反響池。本產(chǎn)品適用的pH值規(guī)模廣,在酸性條件下使用作用尤佳,使用量約為100~1000ppm(即0.1~1公斤/噸廢水),依據(jù)廢水中磷酸根的含量不同其用量有所差異,具體用量一般經(jīng)過試驗斷定。The amount of polyferric sulfate added is right, but the PH value of wastewater is not right, and there is no optimum range of PH used in the corresponding reagents. The suitable range of PH value is 4-11, and the optimum range of PH value is 6-9. After purification, the change range of PH value and total alkalinity of raw water is small.
4, the type of water purification products is not correct. According to the characteristics of sewage, choose suitable water purifying agent suitable for its own sewage characteristics, such as polyaluminum chloride, polyaluminum chloride, polyaluminum ferric chloride, aluminum chloride, spray polyaluminum chloride, white polyaluminium chloride, etc., and listen to the advice of professional water treatment division, and give their advice. They are all professional.
Reasons and Solutions for Floating Matter in the Upper Water Layer of Polyferric Sulfate Used in Sewage Treatment
Polyferric sulfate
5. The last point to consider is whether the quality of the polyferric sulfate you use meets the national standards, and whether the various indicators of the polyferric sulfate meet the national standards.
At present, the quality of polyferric sulfate is uneven in the market. Compared with the better quality of Polyferric sulfate, the probability of suspended solids will be very low. The better polyferric sulfate has almost no water insoluble solids, so the quality of products is also very important. Microbial activity has a promotive effect, that is, effluent color has an impact.
Adding chemical Dephosphorizer to the back of biochemical pond can compleby avoid the reb between various substances in water and dephosphorizer, consume the amount of reagent, and will not reduce the concentration of organic carbon in the influent of biochemical pond, affecting the effect of nitrogen and phosphorus removal by microorganisms. At the same time, it can avoid excessive dosage of phosphorus removal agents, and also make the residual agents into the biochemical system, which will affect the growth of microorganisms.
Adding phosphorus removal flocculant to the outlet of aerobic tank and phosphorus removal agent in front of secondary sedimentation tank can greatly reduce the use of phosphorus removal agent. This is because most phosphorus in wastewater has been removed in the process of biochemical treatment, and phosphorus migration and organic phosphorus are converted into positive phosphorus which can be treated by coagulation, which greatly improves the effect of phosphorus removal and improves the efficiency of phosphorus removal. Reduce the dosage of phosphorus removal agent, reduce sludge production, reduce phosphorus content in sludge. Therefore, chemical phosphorus removal agents are generally added to the biochemical process, before the secondary sedimentation tank, to save the cost of phosphorus removal from wastewater and improve the rate of reaching the standard. ?
When in use, the product can be directly added or participated in the dissolving tank, the concentration of which is 10-20%, mixed and pumped into the reb tank. The product is suitable for a wide range of pH values, especially in acidic conditions. Its application amount is about 100-1000 ppm (i.e. 0.1-1 kg/ton wastewater). According to the different content of phosphate in wastewater, its dosage is different. The detailed dosage is generally determined by experiments.
During the experiment, a certain amount of raw water was taken and the product (such as 500 ppm) was added. The pH value of the wastewater was adjusted to 7-8. www.hnldscl.com participated in the flocculation and deb of a few PAM. The supernatant was filtered to determine the phosphorus content. (If heavy bls need to be treated, the supernatant can be used for secondary treatment.) Reb of AC/PAM with phosphorus removal agent after stirring? When in use, the product can be directly added or participated in the dissolving tank at the concentration of 10-20%. The product can be mixed and pumped into the reb tank. The product is suitable for a wide range of pH values, especially in acidic conditions. Its usage is about 100-1000ppm (i.e. 0.1-1 kg/ton wastewater). According to the content of phosphate in wastewater, its dosage is different. The specific dosage is generally determined by experiments.
試驗時取一定量的原水,參加適量的本產(chǎn)品(如500ppm),將廢水pH值調(diào)理至7~8,參加少數(shù)聚丙烯酰胺PAM絮凝沉積,過濾取上清液測定磷的含量。(如需處理重金屬,用上清液進行二次處理即可。) FeCl3、及 AlCl3溶液充沛混合均勻后參加NaOH溶液,三者摩爾比為3∶2∶14;混合反響并靜置后濾出生成物,用水重復(fù)洗刷至出水為中性;于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。
該吸附劑的使用,在慣例水處理工藝中增設(shè)吸附除磷工藝,吸附除磷工藝由2-4個串聯(lián)運轉(zhuǎn)的除磷吸附池組成,除磷吸附池結(jié)構(gòu)同濾池,用粒狀復(fù)合鐵鋁除磷吸附劑作濾料,粒徑規(guī)模0.5mm-0.8mm,吸附層厚度為1.0-1.5m,吸附池水力負荷5m/h-8m/h,空床觸摸時刻30-40min。該吸附劑除磷適用規(guī)模廣;除污染效能優(yōu)異,再生簡略,質(zhì)料價格低,易得安全。
PAC/PAM與除磷劑制備辦法
FeCl3及 AlCl3溶液充沛混合均勻后參加NaOH溶液,三者摩爾比為3∶2∶14;混合反響并靜置后濾出生成w物,用水重復(fù)洗刷至出水為中性;于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。
該吸附劑的使用,在慣例水處理工藝中增設(shè)吸附除磷工藝,吸附除磷工藝由2-4個串聯(lián)運轉(zhuǎn)的除磷吸附池組成,除磷吸附池結(jié)構(gòu)同濾池,用粒狀復(fù)合鐵鋁除磷吸附劑作濾料,粒徑規(guī)模0.5mm-0.8mm,吸附層厚度為1.0-1.5m,吸附池水力負荷5m/h-8m/h,空床觸摸時刻30-40min。該吸附劑除磷適用規(guī)模廣;除污染效能優(yōu)異,再生簡略,質(zhì)料價格低,易得安In the experiment, a certain amount of raw water was taken and the product (e.g. 500 ppm) was participated in. The pH value of wastewater was adjusted to 7-8. A few PAM flocculating deposits were participated in. The content of phosphorus in the supernatant was determined by filtration. (If heavy bls need to be treated, the supernatant can be used for secondary treatment.) FeCl3, AlCl3 and AlCl3 solutions were mixed in NaOH solution with a molar ratio of 3:2:14; the product was filtered after mixing reb and standing, and washed repeatedly with water until the effluent was neutral; the granular adsorbent was dried at 100-110 ~C and made into unib size.
The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touching time 30-40 min. The adsorbent has wide application scale for phosphorus removal, excellent pollution removal efficiency, simple regeneration, low material price and easy to obtain safety.
Preparation of PAC/PAM and Phosphorus Removal Agent
FeCl3 and AlCl3 solutions were mixed in NaOH solution with a molar ratio of 3:2:14. After mixing and standing, W was filtered and washed repeatedly with water until the effluent was neutral. The granular adsorbent was dried at 100-110 C and made into unib size.
The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touching time 30-40 min. The adsorbent is suitable for phosphorus removal on a wide scale, with excellent pollution removal efficiency, simple regeneration, low material price and easy access to safety.
FeCl3、及 AlCl3溶液充分混合均勻后參加NaOH溶液,三者摩爾比為3∶2∶14;混合反響并靜置后濾出生成物,用水反復(fù)洗刷至出水為中性;于100-110℃下烘干并制成尺度均勻的粒狀吸附劑。該吸附劑的使用,在常規(guī)水處理工藝中增設(shè)吸附除磷工藝,吸附除磷工藝由2-4個串聯(lián)運轉(zhuǎn)的除磷吸附池組成,除磷吸附池結(jié)構(gòu)同濾池,用粒狀復(fù)合鐵鋁除磷吸附劑作濾料,粒徑規(guī)模0.5mm-0.8mm,吸附層厚度為1.0-1.5m,吸附池水力負荷5m/h-8m/h,空床觸摸時間30-40min。該吸附劑除磷適用規(guī)模廣;除污染效能優(yōu)異,再生簡單,質(zhì)料價格低,易得安全。
河道治理用的除磷劑適用規(guī)模
1、用于生活污水處理廠除磷,特別是合適中磷段污水處理;
2、合適于含外表處理工藝的工業(yè)廢水;
3、用于食品廠廢水;
4、用于制藥、造紙、農(nóng)藥、化肥廠的廢水處理。
5、用于廢物填埋廠廢物滲濾液處理。After fully mixing and homogenizing AlCl3 solution, NaOH solution was added with a molar ratio of 3:2:14; the product was filtered after mixing and standing, and washed repeatedly with water until the effluent was neutral; the granular adsorbent was dried at 100-110 (?) C and made into unib size. The adsorbent is used to remove phosphorus by adsorption in conventional water treatment process. The adsorbent consists of 2-4 series operation phosphorus removal adsorbents. The structure of the adsorbent is the same as that of the filter. The particle size of the adsorbent is 0.5mm-0.8mm, the thickness of the adsorbent layer is 1.0-1.5m, and the hydraulic force of the adsorbent is negative. Load 5 m/h-8 m/h, empty bed touch time 30-40 min. The adsorbent has wide application scale for phosphorus removal, excellent pollution removal efficiency, simple regeneration, low material price and easy safety.
Application Scale of Phosphorus Removal Agents for River Regulation
1. It is used for phosphorus removal in domestic sewage treatment plants, especially for medium phosphorus section sewage treatment.
2. Suitable for industrial wastewater containing surface treatment process.
3. Wastewater from food factories;
4. Wastewater treatment in pharmaceutical, papermaking, pesticide and fertilizer plants.
5. Waste leachate treatment in waste landfill plants.