两种水源的水质及其混凝效果对比

针对一年中长江原水和黄浦江原水的水质情况,进行了两种原水几种水质指标的对比分析,混凝沉淀后两种原水氨氮和CODMn的达标情况对比,以及不同水温对于两大原水浊度、氨氮和CODMn混凝效果的影响。结果表明,黄浦江原水的浊度、氨氮和CODMn一般比长江原水高,pH比长江原水低,经过混凝沉淀处理后长江原水氨氮和CODMn的达标率比黄浦江原水高,两种原水的浊度、氨氮和CODMn的去除率随水温的升高有增大的趋势,若两种原水进行混合,为保证其处理后水质达标,则黄浦江和长江原水的配比最好不能超过2∶8。     

混凝沉淀SBR活性炭过滤处理垃圾渗滤液

采用沉淀-SBR-活性炭过滤复合工艺对城市垃圾渗滤液进行处理，确定混凝、SBR和活性炭过滤的最佳参数。结果表明，当进水CODcr 2500mg／L、氨氮在900mg／L的条件下，经该系统处理后，出水CODcr均在300mg/L以下，氨氮在20mg/L以下。CODcr去除率达90％以上，氨氮去除率达98％以上，达到去除有机物和氨氮的较好效果。     

两段SBR工艺脱氮规律实验研究

基于对生物硝化反硝化原理的分析,本实验选用两段SBR工艺生物脱氮技术,解决了高浓度工业废水有机物去除效率高而氨氮去除率不高的难题。同时对其脱氮规律作了研究,找到SBR2是脱氮的关键环节,并分别对SBR2硝化反硝化阶段p H和DO的变化规律进行了研究,得出用这两个参数作为系统自动控制的依据是完全可行的。     

脉冲式SBR法处理生活污水的脱氮特性试验研究

脉冲式SBR工艺是针对传统SBR工艺反硝化效果较差提出的一种新型的SBR运行方式。本试验在北京工业大学污水处理实验室采用真实的生活污水进行研究,考察脉冲式SBR在硝化-投加原水-反硝化这一循环反复过程中（等量进水）的脱氮性能。试验结果表明,出水TN〈2mg/L,去除率达到了96%以上。     

萃取预处理苯胺基乙腈生产废水试验研究

在苯胺基乙腈生产过程中会产生含苯胺、苯胺基乙腈、氰化物等高浓度高毒性高氨氮有机废水,可生化性较差。本试验以甲苯为萃取剂,保持原水的pH值不变,相比为0.33,经三级逆流萃取处理后,苯胺、总氰化物、氨氮和COD的萃取率可分别达到约91%、93%、42%和52%,BOD/COD由0.23提高到0.27,提高了废水的可生化性,甲苯可采用酸洗再生加蒸馏再生联合的处理方式。     

间歇式活性污泥法处理1-4丁二醇废水的研究

用间歇式活性污泥法(SBR法)对高浓度1-4丁二醇废水进行了处理研究。实验测定了污泥沉降性能,测试了最佳曝气时间、最佳pH值范围以及SBR处理系统耐污染的负荷。实验结果表明:SBR法的污泥沉降比为15%～30%,完全符合活性污泥正常运行时的沉降标准。处理污水的最佳曝气时间为5h,最佳pH值范围为7～8。该处理系统耐冲击,能承受较高的污染负荷,对水质的波动有较强的承受能力。利用SBR法可以处理1-4丁二醇、聚丙烯酰胺和顺丁烯二酸酐三套装置排放的混合污水。     

RD吸附氧化法处理富营养化水源水的中试研究

采用RD吸附氧化法处理富营养化水源水的中试研究表明，该法可有效去除原水中的氨氮及COD，去除率可分别达到并保持在99％和75％，且运行费用远低于活性炭吸附法，是一种经济、有效的处理富营养化水源水的方法。     

油田稠油污水生物处理技术研究

针对稠油污水的特点,利用序批式生物反应器SBR对微生物进行了培养、驯化进而在稠油污水中生存、繁殖试验,并对其中的有机物进行了降解转化,生成稳定的CO2、H2O、NH3,利用该方法可以对稠油污水进行净化处理。试验结果表明,采用SBR工艺可使原水中CODCr从323 mg/L降至72 mg/L,去除率为77.7%;BOD从90 mg/L降至14.4 mg/L,去除率为84%;悬浮物从200 mg/L降至47 mg/L,去除率为76.5%。成功地解决了稠油污水的达标外排问题。     

DAT-IAT工艺在屠宰废水处理中的应用

本文介绍了SBR法DAT-IAT工艺的特点，针对NH3-N及TN含量高的屠宰废水，采用了改进的“水解酸化＋SBR DAT-IAT”组合处理工艺。监测结果表明，工程的处理系统运行稳定，处理效率高，出水的各项指标均达到国家排放标准。     

缺氧SBR-UASB-好氧SBR组合工艺对垃圾渗滤液的处理研究

通过实验研究全程生物组合工艺"缺氧SBR-UASB-好氧SBR"处理沈阳市老虎冲填埋场高COD、高氨氮、低B/C晚期垃圾渗滤液的可行性。保证3 L/d进水量,在500%回流比下联合成功启动反应器。通过调整最佳工艺参数,该组合工艺出水COD,氨氮分别为80 mg/L和10 mg/L,达到《生活垃圾填埋场污染控制标准(GB 16889-2008)》一级排放水质要求。     

浅谈氨氮废水处理技术

介绍了氨氮废水的来源和危害,以及主要的氨氮废水处理技术。     

制革行业污染治理集成技术及工程应用

介绍了"五水分流"清洁生产技术、铬液灰液循环利用技术、制革高氨氮废水稳定达标排放技术、MicrowaterTM环境治理微生物技术体系、四相废水深度达标治理专利技术、膜处理回用技术、含铬污泥资源化利用技术等制革行业污染治理集成技术的概况;通过分析应用实例,指出该技术体系在达标治理的前提下,通过清洁生产、高效处理、中水回用、铬泥资源化利用等手段,可有效降低污染治理成本,应用前景广阔。     

序批式活性污泥法在炼油化工废水处理中的应用

炼油化工废水处理的传统处理工艺中存在一定的弊端。为此,玉门炼油化工总厂对其废水处理设施进行了改建和扩建,其生物处理系统采用了序批式活性污泥法处理工艺。经过 3年运行的结果表明:该系统运行效果良好,处理后的水质可达到《GB8978-1996》(石化)一级排放标准的要求;化学需氧量(COD)和生化需氧量(BOD)分别降低78.6%和91.2%,硫化物去除率为98.2%,挥发酚去除率为99.6%。而且该反应器具有较强的耐冲击负荷能力,进水中COD在600 mg/L以下且有大幅度波动时,该系统仍可稳定地运行,处理后的水可达标排放。     

晶析辅助化学沉淀法的研究

在用化学沉淀法处理高浓度氨氮废水的基础上，引入晶析辅助化学沉淀法的思路，即将晶种投加到反应器中，然后从氨氮去除率、生成晶体的粒型、粒径三个方面分析不同晶种对生成晶体的影响，并对生成的磷酸铵镁晶体进行X光衍射分析。得出结论：投加晶种有利于提高氨氮的去除率，但不会明显提高生成晶体的粒径。     

Investigating the quantitative and qualitative status of effluent in the wastewater treatment plant in Iran Central Iron Ore

The aim of present study was to investigate the quality of the produced effluent from different units of the Iran Central Iron Ore in Bafq city and comparison of effluent with the standards. This study presents the physicochemical and biological parameters data of effluent of three Sequencing batch reactors (SBR) with a capacity of 160 m³?d^?1. Most common parameters include pH, total suspended solids (TSS), total nitrogen (TN), total phosphorus (TP), biochemical oxygen demand (BOD₅), chemical oxygen demand (COD), heavy metals, and total coliforms and fecal coliforms as biological indicators. Then, for each SBR system, the average of each parameter was determined, and results were compared with the standard recommended by the Iranian Environmental Protection Agency. Based on the results, some of the parameters, including BOD₅, COD, and TSS in the wastewater treatment plant (WWTP) effluent, are higher than the permitted amount for discharge to the surface water. Considering the BOD₅, COD, and TSS concentration in WWTPs, the treated wastewater is only suitable for agricultural and irrigation use. Therefore, wastewater produced by Iran Central Iron Ore Co. will need additional treatment to achieve standard quality of water before discharge in surface water and adsorbent well.     

活性污泥法的发展及其工程选择

本文阐述了城市污水处理活性污泥法的发展沿革,着重介绍了近三十年出现的几个重要工艺的特点;文中还提出在建设中、小城市污水处理厂时对工艺行根据。建设在目前应更多关注SBR,UNITANK及OD工艺。     

铁路中小站段污水处理匹配技术浅析

铁路通车里程迅速增加，铁路中小站段随之增长。站段内污水排放达不到国家排放标准而引起的环境恶化事例屡见不鲜。作者通过现场调研和资料查询，针对中小站污水排放量小、浓度较低的特点，综合分析了厌氧生物处理系统、SBR法等几种常用铁路污水处理工艺，对铁路水处理技术的发展具有一定的指导意义。     

Operation strategy of a sequencing batch reactor for simultaneous removal of wastewater organic matter and nutrients

The Sequencing Batch Reactor (SBR) system employing activated sludge process is an alternative wastewater treatment technology. A cycle of the conventional SBR system generally consists of five periods, with complete aeration during the React period to oxidize the organic matter and nitrify the ammonium-nitrogen of wastewater. Laboratory-scale reactors were used to evaluate the feasibility of incorporating alternative aerobic-anoxic-aerobic stages within the React period for simultaneous removal of organic matter, N and P. Two cycles of SBR process per day were maintained.Under the operation strategy of 0.75-h fill, 8-h react (with continuous aeration), 3.25-h settle, draw and idle periods, the treatment performance became consistent after running the system for two to four cycles (1–2 days). The percentages of both BOD₅ and COD removal were around 94% from Cycle 2 onwards, the BOD₅ content dropped from initial 251 mg L⁻¹ to less than 14 mg L⁻¹ in the final effluent. A steady nitrification (about 97%) was obtained from Cycle 4 onwards, with 1 mg NH₄⁺-N L⁻¹ and 25 mg NO₃⁻-N L⁻¹ present in the final effluent. This suggested that the time required for SBR system to acclimate and reach an equilibrium state was relatively short when compared with the time needed for continuous flow activated sludge system. The findings also show that 4-h aeration during the react period was long enough to achieve more than 90% nitrification. With the incorporation of a 3-h anoxic stage after the initial 4-h aeration of the react period, a satisfactory denitrification process was observed, with nitrate level dropped from 27 to around 8 mg L⁻¹ within 3 h. The second aeration stage did not cause significant change in wastewater nitrogen content. The wastewater phosphate content declined rapidly during the initial 4-h aeration and P-release was not observed during the anoxic stage. A slight reduction of P was found in the second aeration stage suggesting that more P-uptake occurred in this stage. A 12-h cyclic SBR system with the incorporation of 4-h aerobic, 3-h anoxic and final 1-h aerobic stages into the 8-h react period was demonstrated to be able to remove C, N and P simultaneously.