中试试验对比PAC和PAFC处理低温饮用水的混凝性能

低温降低了混凝剂的混凝性能，为保持传统混凝沉淀工艺中低温条件下饮用水的出水水质，需要优选混凝性能更好的混凝剂。本试验选用了小试试验中性能更优的无机高分子复合混凝剂PAFC（聚合氯化铝铁）与无机高分子混凝剂PAC（聚合氯化铝）进行中试对比试验。试验结果表明铁铝复合混凝剂PAFC在低温条件下的混凝性能要优于铝盐PAC。使用PAFC时混凝澄清池的出水浊度能保持在3NTU以内，在0．55～2．87NTU之间变化。而使用PAC的出水浊度在1．44～3．87NTU之间。比较其他出水指标如色度、氨氮、pH、电导率、铁和CODM。后发现，当PAFC比PAC平均节省药剂12．3％时，PAFC的处理效果仍旧比PAC好。     

无机聚合硅铝混凝剂的合成及其在含油污水净化中的应用

本文以价廉、来源广的水玻璃及硫酸和硫酸铝（简称AS）为原料，制备无机聚合硅铝混凝剂（简称PSA)。对影响PSA产品稳定性的因素进行了讨论；考察了PSA在含油污水混凝脱油净化中的应用性能；并与聚氯化铝（简称PAC）及AS的性能进行了对比。结果表明，PSA是一种高效的含油污水脱油净化用混凝剂，可以使含油污水的处理费用大幅度下降。     

水泥工业生产废水治理及回用技术探讨

本文通过具体工程实例对水泥生产废水处理回用工程可行性、经济性等进行探讨,并提出切实可行的工艺流程,即：无机混凝剂（PAC）＋高分子助凝剂（PHM）的混凝沉淀处理工艺。     

有机颜料废水的混凝预处理研究

利用絮凝剂阳离子聚丙烯酰胺(CPAM)和混凝剂聚合氯化铝(PAC)对有机颜料废水进行混凝处理,考察了单独使用CPAM、PAC及两者联合使用的处理效果,探讨了初始pH值、混凝剂投加量对处理效果的影响.结果表明,CPAM与PAC复配处理该废水时效果较好,水样pH值为7.0;CPAM与PAC的投药量分别为10mg/L和150mg/L时,浊度去除率可达97.56％.     

粉末活性炭在饮用水处理中应用的研究进展

介绍了粉末活性炭（PAC）的基本性质，并对其在饮用水处理应用中的重要影响因素进行了探讨；综述了PAC去除原水中嗅味物质、藻毒素、消毒副产物前驱物以及农药等痕量有机污染物的研究现状；分析了粉末活性炭（PAC）与其他工艺的组合技术在饮用水处理中的应用效果，并对其应用前景做出展望。     

钻井污水处理的物化工艺研究

对二级化学混凝、Fenton氧化与微孔膜过滤耦合技术工艺处理钻井污水进行了实验研究。首先通过对不同混凝剂的对比实验，确定了最佳混凝剂及试剂最佳投加量，探讨了耦合条件对处理出水COD的去除效果。实验结果表明，采用PAC和PFS的二级混凝、Fenton氧化与微孔膜过滤耦合技术工艺可使钻井污水COD去除率达到95％，其余各项指标亦达标。     

炼厂隔油后污水的有机构成及混凝处理

采用GC/MS技术分析了炼厂隔油后污水的有机组成,并研究了不同混凝剂处理污水的效果,以及对有机构成的影响。结果表明,隔油后污水中的有机物质主要是C6–C8,其中酚类物质的含量最高;PAM和PAC混凝处理隔油后污水,可使污水中的有机物质总浓度及各物质的相对比例均发生变化,PAM降低烃类物质的效果好于PAC,而后者降低酚类物质的效果好于前者;在PAC处理污水时,同时投加少量活性炭可有效改变PAC脱除COD的性能。     

苎麻脱胶废水预处理研究

通过采用自制的苎麻脱胶废水混凝剂、去杂脱色剂对苎麻脱胶废水进行预处理，实现了苎麻脱胶废水COD（mg／L）、BOD（mg／L）、SS（mg／L）下降到生化处理的要求，为废水生化处理打下基础。通过微波处理废水滤渣，使其达到快速干燥、炭化，并能作为自制脱色剂组成成分之一，实现了滤渣的资源化利用并降低了废水的处理成本。     

高浓度油田压裂废水降低CODCr的预处理方法

针对高浓度油田压裂废水黏度高、浊度大、含油量高等特点,强化预处理工艺,降低CODCr值。文章通过实验证明了强氧化剂(Fenton试剂)与混凝剂PAC+PAM相结合的工艺可有效降低高浓度含油废水CODCr值,进而通过Fenton试剂与混凝剂的投药量、pH值等因素对高浓度油田压裂废水的影响进行分析,得出采用该化学预处理方法出水水质清澈,可直接进入生化处理系统进行后续处理。     

一种高效复合絮凝剂对多种废水的处理效果

用聚合氯化铝（PAC）和聚丙烯酰胺（PAM）复配成复合絮凝剂（PAC＋PAM）应用于污染河水、生活污水、工业废水和餐饮废水等6种废水的处理，结果表明。PAC、PAM、PAC＋PAM对污染河水的CODc。SS、浊度有显著降低作用，PAC＋PAM的净水效果明显优于PAC和PAM；PAC＋PAM对6种废水中COD的去除率为81．5％～90．4％，平均84．6％。对SS的去除率为81．9％～96．5％，平均88．9％，对浊度的去除率为91．3％-98．0％，平均95．1％；处理后悬浮物基本被絮凝沉降，水体变得较清澈透明，异味或臭味消除。说明本PAC＋PAM复合絮凝剂对各种废水均有良好的净水效果，具有重要的应用价值。     

混凝沉降法处理洗衣废水的实验研究

洗涤废水含有表面活性剂和磷酸盐物质，直接排入水体会造成水体的污染，增加给水处理厂的处理难度，甚至会引起水体富营养化。本实验是通过投加PAC和PAM絮凝沉降联合活性炭吸附来处理商业洗涤废水，以去除废水中的COD。实验表明：采用PAC PAM 活性炭工艺处理洗衣废水的效果较好，投药过程COD的去除率可以达到60％以上，经过活性炭过滤后，总的去除率可以达到86％。出水ODD可以降至在50mg／L左右。     

Methanogenic toxicity and continuous anaerobic treatment of wood processing effluents

Wood processing effluents contain different types of phenolic compounds, from simple monomers to high molecular weight (MW) polyphenolic polymers, that can inhibit wastewater treatment. This work presents a comparative study of the methanogenic toxicity produced by three wood processing effluents (hardboard, fiberboard and BKME (kraft mill effluent)) using Pinus radiata, Eucalyptus and Tepa as feedstock (the last one being a native Chilean tree species). This study evaluates the influence of non-adapted granular and adapted flocculent sludge on forest industrial wastewater treatment as well as continuous anaerobic biodegradation of hardboard processing effluent using the upflow anaerobic sludge blanket (UASB). The adapted biomass (flocculent sludge) did not show any lag-phase signs. The 50% IC (the concentration causing 50% inhibition of methanogenic activity) was 4.3 g COD-effluent (chemical oxygen demand (COD)-of the effluent)/l and 2.8 g COD-effluent/l for the flocculent sludge and the granular sludge, respectively. The UASB system worked at low organic load rates (0.1-0.4 g COD/l d) with the COD removal ranging between 10 and 30%, and color removal did not occur under anaerobic conditions due to high MW. Indeed, the MW analysis indicates the presence of phenolic compounds over 25,000 Da in the anaerobic effluent.     

Electrocoagulation of vegetable oil refinery wastewater using aluminum electrodes

Electrocoagulation with aluminum electrodes was used to treat the vegetable oil refinery wastewater (VORW) in a batch reactor. The effects of operating parameters such as pH, current density, PAC (poly aluminum chloride) dosage and Na(2)SO(4) dosage on the removal of organics and COD removal efficiency have been investigated. It has been shown that the removal efficiency of COD increased with the increasing applied current density and increasing PAC and Na(2)SO(4) dosage and the most effective removal capacity was achieved at the pH 7. The results indicate that electrocoagulation is very efficient and able to achieve 98.9% COD removal in 90 min at 35 mAcm(-2) with a specific electrical energy consumption of 42 kWh(kgCOD(removed))(-1). The effluent was very clear and its quality exceeded the direct discharge standard.     

Regeneration of industrial district wastewater using a combination of Fenton process and ion exchange—A case study

Regeneration studies of wastewater effluent from an organized industrial district (OID) for possible reuse in textile industry as process water was investigated. Advanced treatment methods including Fenton process, polyaluminium chloride (PAC) coagulation and ion exchange were applied on OID effluent. In Fenton process removal efficiencies for suspended solids (SS), chemical oxygen demand (COD), SAC₄₃₆ (spectral absorption coefficient), SAC₅₂₅ and SAC₆₂₀ were determined 61%, 36%, 35%, 49% and 67%, respectively. After Fenton process, wastewater samples were coagulated with PAC. Optimum removal efficiencies for SS, COD, Fe ion, SAC₄₃₆, SAC₅₂₅ and SAC₆₂₀ were determined 83%, 18%, 93%, 32%, 36% and 58%, respectively. Ion exchange experiments were conducted on chemically coagulated wastewater samples to improve the quality of wastewater. Optimum dosage of resins was determined. The experiments revealed that 1:1 resin ratio (20 mL H-type resin:20 mL OH-type resin) gave the best removal rates for the parameters considered in this study. Study results indicated that quality of the wastewater was suitable for the process water characteristics of textile industry and unit wastewater treatment cost was determined as 2.54 €/m³.     

高负荷活性污泥法应用于中小城市污水处理的研究

针对目前二级城市污水处理厂工程投资高、运行费用高的特点，提出适合中小城市污水处理的工艺——高负荷活性污泥法（HAS）。该工艺不设初次沉淀池，负荷高，泥龄短，污泥沉降性能良好，不存在污泥膨胀，对有机物的去除以絮凝、吸附、沉淀作用为主，对COD、BOD，、SS都有较高的去除效果，对氮、磷有一定的去除作用，出水水质可满足《农田灌溉水质标准》的要求。     

壳聚糖/碱铝复配絮凝剂在炼油污水处理中的应用

研究了壳聚糖(CHI)／碱铝(PAC)复配絮凝剂对炼油污水的处理效果，考察了pH值、搅拌时间、沉降时间对炼油污水处理效果的影响，并将之与聚丙烯酰胺(GD-112)／PAC复配絮凝剂对炼油污水处理的效果进行对比。结果表明，CHI／PAC复配絮凝剂在复配比为1：5，pH为7，搅拌10min且沉降10min时处理效果最好，具有适应性广、投加量少、浮渣少、毒性低等特点。     

阳离子聚丙烯酰胺絮凝剂的合成

氨甲基聚丙烯酰胺，是一种性能良好的阳离子型高分子有机絮凝剂，对污水具有较强的絮凝，助凝和污凝脱水能力。本文研究了它的合成方法，并对合成条件进行了探讨，用所得产品进行了剖份试验，效果良好。     

PAC和PASS对印染废水的混凝效果研究

主要研究PAC和PASS混凝剂对高浓度和低浓度印染废水的混凝处理效果。确定了PAC处理高浓度印染废水(pH:4.39;色度:18750倍;COD:6480;浊度:1462)的最佳pH、混凝时间、投药量为5～7、8min、24mL/L;PASS处理低浓度印染废水(pH:10.16;色度:2020倍;COD:168;浊度:36.4)的最佳pH、混凝时间、投药量为6～7、15min、12mL/L。PAC处理高浓度的印染废水效果较好,处理低浓度印染废水的效果较差;PASS处理低浓度印染废水的处理效果比PAC要好。