陰離子聚丙烯酰胺水解度越高越好嗎？其實這個問題太抽象了,陰離子聚丙烯酰胺不一定水解度越高就好；應該關于某類型的污水，陰離子挑選哪種水解度的適宜。 咱們先了解一下，陰離子聚丙烯酰胺 的制備與那些要素有聯(lián)系： 2020年凈水行業(yè)的現(xiàn)實情況和瓶頸 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 洗沙洗煤都要面對發(fā)展政策 企業(yè)轉型去除高耗能地產(chǎn)了抵消的粗狂發(fā)展企業(yè) 開始新能源新環(huán)道治理用的除磷劑是對城市水源水混凝除濁處理及除磷的物品�？梢栽趯Τ鞘兴�源水混凝除濁處理同時，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，不需要增設大型水處理構筑物，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，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對Phosphorus 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)原水性質可通過生產(chǎn)調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)相應藥劑濃度計算酌定。大致按重量比1:3而定。

關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 formed 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 approximately 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PH值不對，沒有在相應藥劑的使用PH范圍。適應水體PH值范圍寬為4-11，PH值范圍為6-9，凈化后原水的PH值與總堿度變化幅度小

4、使用凈水產(chǎn)品的型號不對，根據(jù)污水的特點，選擇適合自己污水特征的凈水劑，如：聚合氯化鋁、聚氯化鋁、聚合氯化鋁鐵、氯化鋁、噴霧式聚合氯化鋁、白色聚合氯化鋁等等，聽從專業(yè)水處理師的指導意見，他們給的意見都是專業(yè)性的。

關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
聚合硫酸鐵

5、最后一點要考慮的就是，你所使用的聚合硫酸鐵，質量是否達標，聚合硫酸鐵的各項指標是否標準。

現(xiàn)在市面上聚合硫酸鐵的質量參差不齊，相對于質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與除磷劑發(fā)生反應,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？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 completely avoid the reaction 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 reaction 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 deposition of a few PAM. The supernatant was filtered to determine the phosphorus content. (If heavy metals need to be treated, the supernatant can be used for secondary treatment.) Reaction 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 reaction 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吸附除磷工藝，吸附除磷工藝由2-4個串聯(lián)運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復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吸附除磷工藝，吸附除磷工藝由2-4個串聯(lián)運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復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 metals 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 reaction and standing, and washed repeatedly with water until the effluent was neutral; the granular adsorbent was dried at 100-110 ~C and made into uniform 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 uniform 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)水處理工藝中增設吸附除磷工藝，吸附除磷工藝由2-4個串聯(lián)運轉的除磷吸附池組成，除磷吸附池結構同濾池，用粒狀復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 uniform 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.
保 這就使得我們的業(yè)務員到了客戶現(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 采用一體化設備這就衍生出復合碳源 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很多家環(huán)保企業(yè)的污水處理項目 特別是農村污水排放處理工程 和中原環(huán)保公司達成長期合作關系為農村環(huán)境改善作出貢獻
丙烯與丙烯酰胺單體合成聚丙烯酰胺的反應為自由基聚合反應，聚合速度、共聚物的組成、產(chǎn)品分子量及其分子量散布等是衡量該反應的重要目標，影響這些目標的要素首要有反應的溫度、反應液的堿 度、引發(fā)系統(tǒng)、單體的比率及濃度等。 上面是比較學術型，如果看不懂沒聯(lián)系，咱們有簡單一點的說法。 點擊翻開原圖 陰離子聚丙烯酰胺的分子量是差異他們的一個目標，陰離子分子量大多都在800-2000萬之間。 跟著水解度的添加，羧基陰離子添加，分子鏈不斷伸展，然后有使絮凝作用逐漸增強的作用；一起，聚丙烯酰胺分子的負電性亦逐漸增強，又阻礙了其與負電性的泥沙雜質相吸附，并且在吸附架橋中起 首要作用的活性基團-酰胺基也不斷減少，然后跟著水解度的添加，又存在使絮凝作用逐漸變差的要素。 陰離子聚丙烯酰胺作為綜合成果：水解比過大，加堿費用較高，水解比過小，又會使反應不足，陰離子型聚丙烯酰胺的混凝或助凝作用較差。 所以陰離子聚丙烯酰胺不一定水解度越高越好，什么都會有個限度，適宜的才是zui優(yōu)的河南安家凈環(huán)保是一家專業(yè)出產(chǎn)各種水處理藥劑，致力于綠色環(huán)�？稍偕�資源的繼續(xù)使用，很多投入了科 研資金，首要產(chǎn)品有聚丙烯酰胺絮凝系列，聚合氯化鋁系列，聚合硫酸鐵系列，堿式氯化鋁等均受到全國客戶的一致好評，咱們將一如即往的出產(chǎn)出品質優(yōu)質的產(chǎn)品來報答客戶對咱們一向的支持聚丙烯酰胺生產(chǎn)及市場現(xiàn)狀分析，可得以下幾點認識：
多人在使用前，都知道需要經(jīng)過進行小試后確定聚合氯化鋁的使用方案后在進行大量的投加使用，其中小試需要得到的有聚合氯化鋁的類型、含量、溶解濃度、使用方法等。那么如何進行聚合氯化鋁的小試呢？河南環(huán)�？萍加邢薰�司為您介紹一下。

聚合氯化鋁的小試一般是先將聚合氯化鋁配置成5%濃度的水溶液來進行實驗。通常為了方面可以稱取5g的聚合氯化鋁固體，然后添加到100ml的水中，就可以配置成聚合氯化鋁的水溶液。然后將需要處理的污水進行取樣并分配成相同的若干份，然后就可以使用聚合氯化鋁進行小試。

用滴管將聚合氯化鋁的水溶液慢慢添加到污水中，并使用玻璃棒進行攪拌，觀察污水的絮凝效果，如果出現(xiàn)礬花就表示聚合氯化鋁的絮凝效果較好，然后將不同的量的聚合氯化鋁水溶液添加到污水的樣品中，攪拌靜置一段時間后觀察看哪個污水樣品更加干凈清澈。在使用聚合氯化鋁的過程中，有時候需要添加一些其他的助凝劑如聚丙烯酰胺等，這樣會加快污水的絮凝和沉淀達到更加好的處理效果。ties. The flocculation is deteriorated gradually with the addition of hydrolysis degree. Anionic polyacrylamide as a comprehensive result: the hydrolysis ratio is too large, the cost of adding alkali is higher, the hydrolysis ratio is too small, and the reaction will be insufficient, the coagulation or coagulation of anionic polyacrylamide is poor. Therefore, anionic polyacrylamide is not necessarily hydrolyzed higher, the better, everything will have a limit, the appropriate is Zui excellent Henan Anjiajing Environmental Protection is a professional production of various water treatment agents, committed to the continued use of green and environmentally friendly renewable resources, a lot of investment in scientific research funds, the primary product is polyacrylamide flocs. Coagulation series, polyaluminium chloride series, polyferric sulfate series, alkaline aluminium chloride series and so on are all praised by the national customers. We will continue to produce high-quality products to repay customers for our support of the production and market analysis of polyacrylamide, we can get the following understandings:
       1、我國已有10個5000t/a以上的PAM生產(chǎn)廠，其中有5個萬噸級PAM大廠。這典 廠家占全國年產(chǎn)量的56%，生產(chǎn)的集中度正在提高。PAM全行業(yè)的總銷售額為62億元。

       2、PAM的主要用途是油田、水處理、造紙三大領域，而且仍然會有增大用量的余地。型聚丙烯酰胺所占比例只有13%，從水處理市場今后發(fā)展來看，陽離子型聚丙烯酰胺的發(fā)展都將有更快的增速。

       3、目前，PAM產(chǎn)品在我國的能源戰(zhàn)略、節(jié)水戰(zhàn)略中占有重要的地位，是不可缺少的產(chǎn)品，它在我國乃至全世界的能源危機以及下一個更為嚴重的水資源危機中將會扮演更為積極的角色。

       4、由于一些油田淡水資源的缺乏及降低生產(chǎn)成本、環(huán)保等方面的要求，三次采油多采用污水配制聚合物，對耐溫抗鹽聚合物的需求越來越多取代高分子聚丙烯酰胺的趨勢，而我國能夠生產(chǎn)抗鹽聚合物的企業(yè)只有三四家，總生產(chǎn)能力在6×104t左右，遠遠不能滿足三次采油的需求，因此，抗鹽聚丙烯酰胺具有廣闊的應用前景。
There are 10 PAM factories with a capacity of more than 5000t/a in China, of which there are 5 large PAM factories with a capacity of 10,000 tons. This manufacturer accounts for 56% of the country's annual output, and the concentration of production is increasing. The total sales volume of PAM industry is 6.2 billion yuan.
2. The main uses of PAM are oil field, water treatment and papermaking, and there is still room for increasing the amount of PAM. The second largest market, water treatment, has accounted for one fourth of the total PAM market and will grow faster than the oilfield market. At present, the paper-making market is relatively concentrated and occupied by four or five PAM factories, some of which have strong specificity. The proportion of cationic polyacrylamide is only 13%. From the future development of water treatment market, the development of cationic polyacrylamide will have a faster growth rate.
3. At present, PAM products occupy an important position in China's energy strategy and water-saving strategy, and are indispensable products. It will play a more active role in the energy crisis in China and the world as well as in the next more serious water resources crisis.
4. Because of the shortage of freshwater resources in some oilfields and the requirement of reducing production cost and environmental protection, sewage is mostly used to prepare polymers for tertiary oil recovery. There is an increasing demand for temperature-resistant and salt-resistant polymers, which tends to replace polymer polyacrylamide in an all-round way. However, only three or four enterprises in China can produce salt-resistant polymers. The total production capacity of salt-resistant polyacrylamide is about 6 *104t, which can not meet the demand of tertiary oil recovery. Therefore, salt-resistant polyacrylamide has broad application prospects.
In addition, the demand for polyacrylamide products will increase considerably in recent years due to the attention paid by our government and relevant enterprises to sewage treatment. Most domestic enterprises plan to build polyacrylamide projects mainly for urban sewage treatment. According to experts'prediction, the annual demand of municipal wastewater treatment in Shanghai alone will reach 1 x104t. It can be expected that the application potential of polyacrylamide products in wastewater treatment will be tremendous.
It can be seen that salt-resistant polyacrylamide products have broad application prospects in tertiary oil recovery and sewage treatment.
 

       此外，由于近幾年來有關企業(yè)對污水處理事業(yè)的重視，對聚丙烯酰胺產(chǎn)品的需求量將會有較大幅度的增加。國內大部分企業(yè)擬建聚丙烯酰胺項目主要是針對城市污水處理。據(jù)城市污水處理年需量將達1×104t，可以預期聚丙烯酰胺產(chǎn)品在 污水處理方面應用的潛為巨大。

       由此可見，抗鹽聚丙烯酰胺產(chǎn)品在三次采油和污水處理方面的應用前景十分廣闊，其他行業(yè)的應