污泥脱水 污水脱泥处置中 聚丙烯酰胺的运用遇到常见问题的处理方法
污泥脱水都要用到压滤机 板式压滤阴离子聚丙烯酰胺水解度越



高越好吗？其实这个问题太抽象了,阴离子聚丙烯酰胺不一定水解度越高就好；应该关于某类型的污水，阴离子挑选哪种水解度的适宜。 咱们先了解一下，阴离子聚丙烯酰胺 的制备与那些要素有联系： 丙烯与丙烯酰胺单体合成聚丙烯酰胺的反应为自由基聚合反应，聚合速度、共聚物的组成、产品分子量及其分子量散


布等是衡量该反应的重要目标，影响这些目标的要素首要有反应的温度、反应液的碱 度、引发系统、单体的比率及浓度等。 上面是比较学术型，如果看不懂没联系，咱们有简单一点的说法。 点击翻开原图 阴离子聚丙烯酰胺的分子量是差异他们的一个目标，阴离子分子量大多都在800-2000万之间。 跟着水解度的添加，羧基阴离子添加，分子链不断伸展，然后有使絮凝作用逐渐增强的作用；一起，聚丙烯酰胺分子的负电性亦逐渐增强，又阻碍了其与负电性的泥沙杂质相吸附，并且在吸附架桥中起 首要作用的活性基团-酰胺基也不断减少，然后跟着水解度的添加，又存在使絮凝作用逐渐变差的要素。 阴离子聚丙烯酰胺作为综合成果：水解比过大，加碱费用较高，水解比过小，又会使反应不足，阴离子型聚丙烯酰胺的混凝或助凝作用较差。 所以阴离子聚丙烯酰胺不一定水解度越高越好，什么都会有个限度，适宜的才是zui优的河南安家净环保是一家专业出产各种水处理药剂，致力于绿色环保可再生资源的继续使用，很多投入了科 研资金，首要产品有聚丙烯酰胺絮凝系列，聚合氯化铝系列，聚合硫酸铁系列，碱式氯化铝等均受到全国客户的一致好评，咱们将一如即往的出产出品质优质的产品来报答客户对咱们一向的支持聚丙烯酰胺生产及市场现状分析，可得以下几点认识：
多人在使用前，都知道需要经过进行小试后确定聚合氯化铝的使用方案后在进行大量的投加使用，其中小试需要得到的有聚合氯化铝的类型、含量、溶解浓度、使用方法等。那么如何进行聚合氯化铝的小试呢？河南环保科技有限公司为您介绍一下。

聚合氯化铝的小试一般是先将聚合氯化铝配置成5%浓度的水溶液来进行实验。通常为了方面可以称取5g的聚合氯化铝固体，然后添加到100ml的水中，就可以配置成聚合氯化铝的水溶液。然后将需要处理的污水进行取样并分配成相同的若干份，然后就可以使用聚合氯化铝进行小试。

用滴管将聚合氯化铝的水溶液慢慢添加到污水中，并使用玻璃棒进行搅拌，观察污水的絮凝效果，如果出现矾花就表示聚合氯化铝的絮凝效果较好，然后将不同的量的聚合氯化铝水溶液添加到污水的样品中，搅拌静置一段时间后观察看哪个污水样品更加干净清澈。在使用聚合氯化铝的过程中，有时候需要添加一些其他的助凝剂如聚丙烯酰胺等，这样会加快污水的絮凝和沉淀达到更加好的处理效果。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、我国已有10个5000t/a以上的PAM生产厂，其中有5个万吨级PAM大厂。这典 厂家占全国年产量的56%，生产的集中度正在提高。PAM全行业的总销售额为62亿元。

       2、PAM的主要用途是油田、水处理、造纸三大领域，而且仍然会有增大用量的余地。 大市场水处理已占整个PAM市场的1/4，并且将会比油田市场的增长速度更快；目前造纸市场比较集中，由四五家PAM厂所占有，其中某些品种有较强的专用性。阳离子型聚丙烯酰胺所占比例只有13%，从水处理市场今后发展来看，阳离子型聚丙烯酰胺的发展都将有更快的增速。

       3、目前，PAM产品在我国的能源战略、节水战略中占有重要的地位，是不可缺少的产品，它在我国乃至全世界的能源危机以及下一个更为严重的水资源危机中将会扮演更为积极的角色。

       4、由于一些油田淡水资源的缺乏及降低生产成本、环保等方面的要求，三次采油多采用污水配制聚合物，对耐温抗盐聚合物的需求越来越多，有取代高分子聚丙烯酰胺的趋势，而我国能够生产抗盐聚合物的企业只有三四家，总生产能力在6×104t左右，远远不能满足三次采油的需求，因此，抗盐聚丙烯酰胺具有广阔的应用前景。
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，由于近几年来我国和有关企业对污水处理事业的重视，对聚丙烯酰胺产品的需求量将会有较大幅度的增加。国内大部分企业拟建聚丙烯酰胺项目主要是针对城市污水处理。据预测，仅上海的城市污水处理年需量将达1×104t，可以预期聚丙烯酰胺产品在 污水处理方面应用的潜为巨大。

       由此可见，抗盐聚丙烯酰胺产品在三次采油和污水处理方面的应用前景十分广阔，其他行业的应

在全球流行的情况下，净水工业的道路在哪里？

2020年对多纳多来说注定是艰难的一年，眼泪，情绪和胜利后短暂的喜悦面对全球疫情的爆发，我们净水行业将河南安家净环保技术开发出来，致力于生产聚丙烯酰胺，聚合氯化铝，聚合硫酸铁二十多年来，在经历了很多中原周边的湖北省，疫情也很严重，进入三月份，在党的领导下，企业基本战胜了疫情爆发，开始恢复生产聚合氯化铝，聚丙烯酰胺，基本进入正常阶段，因为我们工人所需的原料基本都是当地员工，技术成熟，生产工艺成熟，不是我们内部生产的，而是我们内部生产的外面很多小企业无法限度地发挥砂洗食品污水处理厂污水站无法限度地停止影响的是小厂家我们有强大的生产力量的资金支持和老客户的支持每天出货量在100吨以上的价格也在免税免租金的刺激经济帮助中小企业渡过难关得到了优质优价的支持稳定了市场人气供应客户所需

河南安家井环保聚丙烯酰胺聚合氯化铝聚合硫酸铁选择我们选择服务，诚信，移动一个，一个稳定期待您的来电，网络环保经理
含油污水处理难度大 洗沙厂污水处理比较简单 进入冬季有客户反应以前用的挺好的药剂选择有问题了 这是扫描原因呢 跟进安家净环保聚丙烯酰胺技术员的总结 这个主意是因为选型问题价值 反应时间不够充分 溶解时间不够充分 聚丙烯酰胺选择市场已经乱的价格都报道4000了 您想想这还能卖到好货吗 购买产品不要张嘴就说价格高了 我们卖的是服务 后期维护 给您时机解决问题



机 带式压AM聚丙烯酰胺的合成及工艺物理特性：PAM由丙烯腈与水在骨架铜催化剂作用下直接反响生成聚丙烯酰胺再经离子交流聚合单调，等工序即得废品，工艺简介如下：催化剂：催化水合CH2=CHCN+H2O 湿度 CH2=CHCONH2 聚合nCH2=CHCONH2-引发剂-CH2CHCONH2

    聚丙烯酰胺工业用处：聚丙烯酸胺(PAM)分子量高、水溶性好、可调理分子量，并能够引进各种离子基团以得到特定的性能。低分子量是分散资料有效增调剂或稳定剂，高分子量是重要的絮凝剂，它能够制造出亲水而水不溶性的凝胶，它对许多团体外表和溶解物质有良可以作为净水药剂使用，也可以在造纸领域被当做助留剂使用，部分造纸使用草浆纤维较短，细胞杂质较高，导致了纸张强度较差，抄纸过程中滤水困难。对于此问题处理办法有两种：机械截留和胶体絮凝。

机械截留类似于过滤作用，它适用于纸张中较长部分纤维，纤细组分隐藏高的原因无法由此说明，助留剂的助留作用也无法用此解释；

胶体絮凝作用为：凝聚作用和絮凝作用。分子量较小或者无机盐、电荷密度较高的聚合物使胶体悬浮液稳定性丧失从而发生絮聚作用称之为凝聚作用，经过电荷中和、异相凝聚和补缀作用几种方法产生的沉积物。聚合氯化铝是指聚凝作用中所提到的无机盐。电荷密度较高的聚合物。

运用聚合氯化铝处理了造纸进程由酸性改为中、碱性规模，纸浆中的阴离子杂质的问题，纸机操作以及纸质量的一系列问题，聚合氯化铝带有阳电荷，可以有效的控制阴离子的作用，有利于纸张滤水性 改善，聚合氯化铝极容易在纤维外表形成吸附，还可以将带有负电荷的填料和纤维吸附，使细料的藏着率有效的提高，浆料的滤水功效得到进一步的改善好的粘附力。由于以上性能PAM普遍应用于絮凝、增稠、减阻、拟胶、粘结、阻垢等范畴 。

    阴离子聚丙烯酰胺依据不同用处和用户对产品性能的央求，可选用不同分子量运用。

    在工业废水处置中，特别是关于悬浮颗粒、较粗、浓度高、粒子带阳电荷，水的PH值为中性工碱性的污水如钢铁厂废水，电镀厂废水，冶金废水，洗煤废水等污水处置效果很好。

    在饮用水处置。我国很多自来水厂的水源自江河泥少及矿物质含量高，比拟混浊，虽经过沉淀处置，但仍达不到央求，需求投加絮凝剂，才干使水质变清，很多自来水厂采用无机絮凝剂，但投加量大，构成污泥量增大效果不好，采用阴离子聚丙烯酰胺作絮凝剂，投加量是无机絮凝的50分之一但效果是无机絮凝剂的几倍至几十倍，特别是我公司消费的聚丙烯酰胺，剩余单体已抵达食品级(小于0.05%)，接近国外先进程度，，对处置饮用水更为合适，关于有机物污染严重的江河水和阴离子聚丙烯酰胺配合运用效果更好。

    聚丙烯酰胺用作淀粉厂及酒精厂的流失淀粉及酒糟的回收。往常很多淀粉厂排出的废水内淀粉很高，排放之后影响环境，糜费资源，投加PAM，使淀粉沉淀，沉淀物经压滤机压滤变成饼类可作饲料，酒精厂大量的酒糟就是采用这种工艺加工的，黑龙江某酒精厂就是聚丙烯酰胺作絮凝剂，对酒糟中止回收的而且获得了很大的经济效益。

    聚丙烯酰胺用作油田调剖堵水的堵水剂，三次采油的驱油剂。

    聚丙烯酰胺用作造纸助剂，PAM在造纸方面用处很普遍，可作为长纤维造纸分散剂，干湿加强剂，助留，助滤剂及造纸废水的絮凝剂等。

    最新型的水处置剂聚丙烯酰胺，在很多场所处置污水和上水时，阴离子聚丙烯酰胺和阳离子聚丙烯酰胺配合运用要比单独运用一种离子型聚丙烯酰胺产生十分显著和协同效应，PAM对降低外表张力的才干要远远大于同条件下阳离子或阴离子单独存在的才干，为抵达降低外表张力的央求，需求同时运用阴离子和阳离子聚丙烯酰胺，便两者如运用不当，会产生白色沉淀物，失去运用效果 。而PAM具有两性离子的特性，它能够完成阴离子、阳离子的配合协同作用，面没有任何沉淀物的产生，特别是对水质状况比拟复杂或水的性质经常变化的，运用PAM作为处置絮凝剂更为便当，效果更好。

    在污水预处置中采用的污泥取自以钱塘江水为水源的沉淀池，该水厂以聚合氯化铝PAC为絮凝剂。污泥经自然浓缩到含固率为2.7%～2.8%，经测定，污泥中有机物含量为12.1%，sj如含量为52.1%，Al。含量为20.2%。 PAM有阳离子型、阴离子型和非离子型三品种型。非离子型PAM溶解速度较慢，普通不用于污泥预处置，因而实验仅选用两种有代表性的阳离子聚丙烯酰胺和阴离子聚丙烯酰胺。阳离子型PAM分子量1200万，丙烯酰胺单体含量0.012%。阴离子型PAM分子量1250万，丙烯酰胺单体含量0.013％。两种PAM配制浓度均为0.05％%，冰箱冷藏24h后运用。

    (1)PAM预处置污泥取lOOml污泥，放入300ml的烧杯中，采用六联搅拌机以1130rpm的转速快 速搅拌30s后疾速投加～定量制备好的PAM，继续以lOOrpm的转速搅拌30s， 然后降低搅拌机转速到20～30rpm慢速搅拌60s促进絮凝。分别测定预处置后污泥的比阻、毛细吸水时间(CST)、过滤液的粘度和离心液的粘度。

    (2)比阻按考克力(Coackley)提出的实验办法，采用布氏漏斗实验。布氏漏斗的直径为80mm，滤纸采用由70mm定量中速滤纸，实验真空度控制为0.01MPa。实验反复3次取均匀值。

    (3)为了降低比阻，进步污泥脱水效果，在污泥脱水前普通均需对污泥中止预处置。污泥预处置的办法有冰冻一冻结预处置、热处置、酸处置、碱处置、石灰预处置和高分子絮凝剂预处置等，其中高分子絮凝剂聚丙烯酰胺(PAM) 预处置是目前国内外采用最普遍的预处置办法。

    (4) 聚丙烯酰胺絮凝剂预处置普通占整个污泥处置费用较高的比例，因而，聚丙烯酰胺的优化选择和投加率的合理肯定对降低污泥预处置费用相当关键。对选择聚丙烯酰胺的实验办法的研讨已展开多年，包括比阻、CST值、污泥流变性、分别液粘度、活动电流等。The synthesis and process physical properties of AM polyacrylamide: PAM is prepared by direct reaction of acrylonitrile with water under the action 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 performance.
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, metallurgical 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 clear. 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 method 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 methods 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 method at home and abroad.

    (5)实验研讨标明：投加阳离子型和阴离子型PAM后污泥比阻都降低近2个数量级，显著改善了污泥的脱水性能。阴离子型PAM投加率为0.3kg/T干污泥，阳离子聚丙烯酰胺絮凝剂的加率为1.5kg/T于污泥，可见阴离子型PAM的投加率远小于阳离子型PAM的投加率，且阴离子型PAM的价钱约是阳离子型PAM价钱的1/2，故阴离子型PAM可作为自来水厂污泥预处置药剂的首选。

    (6)依据CST值变化肯定PAM最投加率与测定比阻得到的最投加率分歧。并且CST值与比阻之间存在线性相关关系，比阻值越大，CST值越大，因而能够采用CST值来近似替代污泥比阻反映污泥的脱水性能。与比阻相比，cST值测定快速、烦琐，不但适用于实验室研讨，还可用于消费现场，快速理解污泥脱水性能的变化，使操作人员及时调楚PAM投加率，俭省药剂费。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)不管是阳离子聚丙烯酰胺絮凝剂还是阴离子聚丙烯酰胺胺量多 有的是压出来 含水量低 但是遇到的问题是压泥不洁净 含水量高 沉淀速度慢 反响不充沛 沾履带 这些问题 很多时分是由于加药用量问题 聚丙烯酰胺的运用十分严厉的 几 适宜不适宜 很重要 还有就是 压滤机设备 工作问题 效果不好 假如有这些问题联络我们 河南安家净 全程为您效劳 
净水资料的品种剂 葡萄糖 还有各种滤料 活性炭 沸
??基于铝盐和铁盐的凝聚和水解机理开发的无机聚合物凝结剂。它基于协同原理，添加元素铁离子或氧化铁和其他含铁化合物。一种新型的高效混凝剂，它结合了铝盐和铁盐的优点，对铝离子和铁离子的形态有明显的改善，聚合度大大提高。铝和铁凝结剂分别用于气体。浮选操作的优点是提高聚合氯化铝的凝结性能；高浊度水和低温低浊水的净化处理效果尤为明显，因此在生产时应注意，我们生产的产品只要按照标准操作，即可产生良好的效果
砂 火山石 麦饭石 我的天啊 这么多东西 如何选择呢 你懂吗 污水处置是一个权宜之计的 持久开展的业务工作水处置之后能够循环运用 或者到达排放规范 就能排放进来 不污染环境 污染水资源 水是人的生命之本 河南安家净环保 努力于污水处置20余年 面对的客户遍及全国各个行业范畴  不理解这一个行的 平常人生活饮用的自来水 总以为来之简单容易 用水破张糜费 不晓得顾惜水资源 水来自于大自然的捐赠 但是为什么要有价钱 价钱本钱在哪里 人工 运输管道 再加上 水处置的本钱 普通污水厂 饮用水厂处置本钱一吨水在几毛钱 多则1元左右 水处置的排放规范不一样 还有很多砂石 污泥水不能饮用 只能用于工业运用 比方洗沙水 就能循环运用 造纸厂的水一样能够 安家净环保聚合氯化铝 聚丙烯酰胺是十分专业的一个团队 现场实验 配比适宜的药剂用了 处置到达适宜的排放运用规范 pam pac简简单单的6个字母 是多么强大的 有力的为地球环境做出了很大的奉献 处理的了无数水处置难题