Fenton试剂氧化—石灰法处理苎麻脱胶废水

采用Fenton试剂氧化一石灰法处理苎麻脱胶废水（简称废水）。在pH为8．3的废水中FeSO4·7H2O、H2O2、饱和石灰乳的加入量分别为1．5g／L、1．0mL／L和1．0mL／L的条件下对废水进行处理，废水COD由650mg／L降至200mg／L以下，COD去除率约为70％；色度由500倍降至70倍以下，色度去除率约为90％，出水COD和色度均达到GB8978-1996（污水综合排放标准）中的二级排放标准。     

混凝-间歇式活性污泥法处理炼油废水

采用混凝-间歇式活性污泥（SBR）法处理炼油废水，考察了混凝、SBR法对炼油废水的处理效果。实验结果表明：在硫酸铝、聚丙烯酰胺、CaCl2加入量分别为50，3，100mg／L的条件下，油去除率为82．7％，COD去除率为57．1％，BOD，／COD为0．24，混凝处理出水具有一定的可生化性；对混凝处理出水用SBR法进行厌氧水解2h、好氧曝气9h的生物处理后，出水COD低于150mg／L，COD去除率在80％左右。     

铁屑微电解法深度处理油田钻井污水

采用化学混凝-铁屑微电解法深度处理钻井污水。确定了最佳工艺条件：铁屑与活性炭的质量比为0．5，反应时间为2h，污水pH为1．0，温度为常温，反应后用石灰乳调节污水pH至12。处理后钻井污水COD可由原水的8065mg／L降至430mg／L，COD去除率大于94％，色度去除率达100％，达到国家综合污水三级排放标准。     

高效降解菌处理高浓度焦化废水

为了解决高浓度焦化废水不经稀释无法直接处理的问题,将HENGJIE高效混合菌制剂和粉末活性炭加入O1AO2废水处理系统中,进行焦化废水的中试试验。试验结果表明,该方法可对未经稀释的高浓度焦化废水直接进行处理,且系统启动快,菌种对污染物的降解效率较高。在O1段水力停留时间为20h、A段水力停留时间为35h、O2段水力停留时间为25h的条件下,经过20d的连续运行后,使进水COD由5435．7mg／L（平均值）降至出水COD369．3mg／L（平均值）,COD去除率为93．17％;使进水中NH3-N平均质量浓度由67．80mg／L降至出水中NH3-N平均质量浓度1．04mg／L,NH3-N去除率为98．18％,废水色度为100～200。除废水COD与色度外,其他检测项目均可达到废水一级排放标准。     

微电解-催化氧化法处理高浓度甲醇废水

采用微电解一催化氧化法处理某化工厂的高浓度甲醇生产废水。实验结果表明：在进水pH为2．0、铁炭质量比为2、微电解时间为14h、空气流量为500mL／min的条件下,废水经微电解处理后,出水COD由原来的约7000mg/L降至约1000mg／L,COD去除率达85％以上;在过滤后微电解出水COD约为950mg／L、微电解出水pH为6．5、空气流量为300mL／min、催化氧化时间为3h时的条件下,经催化氧化处理后,出水COD降至100mg/L以下,出水水质达到GB8978--1996《污水综合排放标准》的二级标准。     

活性污泥法联合处理石洞口电厂锅炉柠檬酸酸洗废液和生活污水的试验研究

对上海石洞口发电厂1000t／h直流炉柠檬酸酸洗废水和该厂生活污水用活性污泥法进行联合处理。在室温下,控制污泥沉降比30％～35％,pH7．0～7．5,溶解氧4．0～4.5mg／L。停留时间1．5～2．0小时,CODcr和BOD5的去除率均可达90％以上,效果显著。当进水CODCr浓度控制在800～850mg／L范围内时,出水CODCr将小于100mg／L,BOD5小于30mg／L,可达标排放。     

湿法腈纶废水的生化处理

采用水解酸化—固定化微生物流化床—氧化混凝联合工艺处理湿法腈纶废水.该工艺采用的高效菌微生物固定化技术及新型氧化混凝技术均对湿法腈纶废水有较好的处理效果.实验结果表明:在水解酸化温度为42℃、水解酸化运行周期为20 h的条件下,接种活性污泥和高效菌的SBR的COD去除率为26.0％;在新型氯铁型氧化混凝剂加入量为15 mL/L的条件下,混凝出水COD可降至66 mg/L.水解酸化—固定化微生物流化床—氧化混凝联合工艺的总COD去除率可达89.4％.     

树脂吸附法处理分散蓝NKF脱磺母液

对NDA－9大孔吸附树脂吸附法处理分散蓝NKF生产过程中产生的脱磺母液（废水）进行了研究。在试验条件下，废水经吸附处理后COD由7500mg/L以上降至700mg/L以下，去除率达90％以上，树脂的脱附率大于98％。吸附出水经Fenton试剂氧化处理后，出水COD降至100mg/L以下，去除率达98％以上。     

膜生物反应器处理显影废水

研究了膜生物反应器对预处理后的显影废水的处理效果，考察了MLSS和DO对系统出水水质的影响。文验结果表明：在系统运行温度15～30℃、停留时间10—15h、曝气量4～10m^3／h的条件下，系统稳定后出水水质良好且稳定，COD去除率为85％～92％，Cu^2＋去除率为90％～98％；生物反应池中的活性污泥对Cu^2＋的去除起主要作用，使出水中Cu^2＋质量浓度维持在0．5mg／L以下；考虑到废水处理效果和能耗两方面的因素，MLSS宜控制在6000mg／L左石，DO应控制存1．5～2．5mg／L。     

絮凝沉淀-Fenton试剂氧化法处理含高浓度硫酸盐的洗涤剂生产废水

采用絮凝沉淀-Fenton试剂氧化法处理含高浓度硫酸盐的洗涤剂生产废水（简称废水）,考察了各种因素对COD去除率的影响。实验结果表明：根据实际废水的水质情况,选用聚合氯化铝（PAC）为絮凝剂,PAC最佳加入量为0．3g／L,经絮凝处理后COD去除率为42．3％;Fenton试剂氧化的最佳操作条件为：n（H2O2）：n（Fe^2＋）=0．5、H2O2加入量为7mmol／L、反应时间为2h,不调节废水初始pH,经Fenton试剂氧化处理后COD去除率为70％以上。经絮凝沉淀-Fenton试剂氧化法处理后,废水COD由1950mg／L降至240mg／L,总的COD去除率为87．7％,废水处理效果良好。     

MBR系统好氧反硝化效果及好氧反硝化菌的鉴定

采用间歇曝气法对MBR系统好氧反硝化菌进行了培养和富集,考察了系统的好氧反硝化效果及其影响因素,并对好氧反硝化菌进行了分离和鉴定。实验结果表明:在DO为2.0~3.0 mg/L、m(C)∶m(N)为8∶1的条件下,MBR系统好氧反硝化效果较好,COD、氨氮、TN的去除率分别达到90%,90%,62%左右;从系统活性污泥中得到11株好氧反硝化性能较好的好氧反硝化菌,它们属于变形菌门,分别属于不动杆菌属、丛毛单胞菌属、气单胞菌属、假单胞菌属和噬氢菌属。     

Fenton试剂—好氧活性污泥法处理邻苯二甲酸二丁酯废水

采用Fenton氧化—好氧活性污泥法处理邻苯二甲酸二丁酯（DBP）废水,优化了Fenton氧化反应的工艺条件。实验结果表明：在H₂O₂加入量4 g/L、Fe²⁺加入量200 mg/L、反应温度60 ℃、废水pH 4、反应时间60 min的最佳工艺条件下,Fenton氧化出水COD为200~250 mg/L,DBP质量浓度约为0.10 mg/L;在污泥质量浓度2 000 mg/L、DO 2~3 mg/L、水力停留时间8 h的条件下,好氧活性污泥法处理出水的COD基本低于50 mg/L,DBP质量浓度约为0.05 mg/L,均满足GB 8978—1996《污水综合排放标准》,可达标排放。     

Treatment of municipal landfill leachate using a combined anaerobic digester and activated sludge system

The main objective of this study was to assess the feasibility of treating sanitary landfill leachate using a combined anaerobic and activated sludge system. A high-strength leachate from Shiraz municipal landfill site was treated using this system. A two-stage laboratory-scale anaerobic digester under mesophilic conditions and an activated sludge unit were used. Landfill leachate composition and characteristics varied considerably during 8 months experiment (COD concentrations of 48,552–62,150 mg/L). It was found that the system could reduce the COD of the leachate by 94% at a loading rate of 2.25 g COD/L/d and 93% at loading rate of 3.37 g COD/L/d. The anaerobic digester treatment was quite effective in removing Fe, Cu, Mn, and Ni. However, in the case of Zn, removal efficiency was about 50%. For the rest of the HMs the removal efficiencies were in the range 88.8–99.9%. Ammonia reduction did not occur in anaerobic digesters. Anaerobic reactors increased alkalinity about 3.2–4.8% in the 1st digester and 1.8–7.9% in the 2nd digester. In activated sludge unit, alkalinity and ammonia removal efficiency were 49–60% and 48.6–64.7%, respectively. Methane production rate was in the range of 0.02–0.04, 0.04–0.07, and 0.02–0.04 L/g COD_rem for the 1st digester, the 2nd digester, and combination of both digesters, respectively; the methane content of the biogas varied between 60% and 63%.     

甲苯对UASB反应器中溶解性微生物产物的影响

以乙酸钠为外加碳源,考察了UASB反应器内甲苯对可溶性微生物产物（SMP）的影响。实验结果表明：低质量浓度（20~70 mg/L）的甲苯对微生物有刺激作用,使得污泥增殖速率变小,SMP的质量浓度也逐渐减少,经过一段时间的驯化后,系统COD和TOC的去除率分别达到93%和94%以上,下降趋势较小;较高质量浓度（70~200 mg/L）的甲苯对微生物有抑制作用,污泥活性下降,反应器运行状况开始恶化,SMP的质量浓度也逐渐增大,经过一段时间的驯化后,系统COD和TOC的去除率分别维持在81%和83%以上;当甲苯质量浓度超过200 mg/L时,表现为污泥活性严重下降,对COD的去除效果极差。     

厌氧折流板污泥对偶氮染料酸性大红GR的生物降解性能研究

研究了厌氧折流板反应器（ABR）活性厌氧污泥对偶氮染料酸性大红GR的吸附与生物降解性能,并与失活污泥进行了对比。试验结果表明,35℃时厌氧活性污泥2h、12h、6d的脱色率分别为78.2%、86.0%、98.9%。无论在反应初始阶段还是稳定阶段,ABR活性厌氧污泥对染料的去除效果都明显优于失活污泥。而且在初始COD为1152mg/L的,由于非有效吸附位置染料脱落等原因,反应期间,失活污泥混合液中染料浓度还会升高。情况下,活性厌氧污泥混合液出水COD为86.0mg/L,去除率约为92.5%。这说明ABR厌氧污泥微生物在短时间内便可以得到驯化,一旦厌氧微生物适应生长环境,生物降解便开始对染料发挥作用。     

一株吡啶降解菌的筛选及其降解性能

以吡啶为唯一碳源,从焦化厂活性污泥中分离得到一株对吡啶具有高效降解能力的菌株B1,对其进行了菌种鉴定。通过单因素实验研究了菌株B1适宜的降解条件,对反应过程进行了动力学拟合,并考察了菌株B1对焦化废水中吡啶的降解效果。实验结果表明:菌株B1为革兰氏阴性菌,属于不动杆菌属(Acinetobacter sp.);菌株B1适宜的降解条件为降解温度30℃、初始pH为7、摇床转速150 r/min;菌株B1对吡啶的降解过程符合零级反应动力学模型,当初始吡啶质量浓度为300 mg/L时,降解速率常数最高达到21.103 mg/(L·h);用菌株B1对初始吡啶质量浓度为430 mg/L的实际焦化废水处理74 h后,吡啶降解率可达74.26%。     

无机陶瓷膜MBR处理己内酰胺生产废水

采用无机陶瓷膜分离装置对己内酰胺生产废水处理工艺中的初沉池出水进行泥水分离.实验结果表明:无机陶瓷膜分离装置能有效去除废水中的悬浮物和COD,悬浮物去除率达90％以上,出水悬浮物质量浓度在1 mg/L以下;COD去除率为70％以上,出水COD在100 mg/L以下;采用质量分数为5％的NaOH溶液能对无机陶瓷膜分离装置...     

Organics removal from landfill leachate and activated sludge production in SBR reactors

This study is aimed at estimating organic compounds removal and sludge production in SBR during treatment of landfill leachate. Four series were performed. At each series, experiments were carried out at the hydraulic retention time (HRT) of 12, 6, 3 and 2d. The series varied in SBR filling strategies, duration of the mixing and aeration phases, and the sludge age. In series 1 and 2 (a short filling period, mixing and aeration phases in the operating cycle), the relationship between organics concentration (COD) in the leachate treated and HRT was pseudo-first-order kinetics. In series 3 (with mixing and aeration phases) and series 4 (only aeration phase) with leachate supplied by means of a peristaltic pump for 4h of the cycle (filling during reaction period) - this relationship was zero-order kinetics. Activated sludge production expressed as the observed coefficient of biomass production (Y(obs)) decreased correspondingly with increasing HRT. The smallest differences between reactors were observed in series 3 in which Y(obs) was almost stable (0.55-0.6 mg VSS/mg COD). The elimination of the mixing phase in the cycle (series 4) caused the Y(obs) to decrease significantly from 0.32 mg VSS/mg COD at HRT 2d to 0.04 mg VSS/mg COD at HRT 12d. The theoretical yield coefficient Y accounted for 0.534 mg VSS/mg COD (series 1) and 0.583 mg VSS/mg COD (series 2). In series 3 and 4, it was almost stable (0.628 mg VSS/mg COD and 0.616 mg VSS/mg COD, respectively). After the elimination of the mixing phase in the operating cycle, the specific biomass decay rate increased from 0.006 d(-1) (series 3) to 0.032 d(-1) (series 4). The operating conditions employing mixing/aeration or only aeration phases enable regulation of the sludge production. The SBRs operated under aerobic conditions are more favourable at a short hydraulic retention time. At long hydraulic retention time, it can lead to a decrease in biomass concentration in the SBR as a result of cell decay. On the contrary, in the activated sludge at long HRT, a short filling period and operating cycle of the reactor with the mixing and aeration phases seem the most favourable.     

超临界水氧化法处理含油污泥

采用间歇式超临界水氧化(SCWO)反应器处理采油过程产生的含油污泥,考察了反应参数对污泥COD去除率的影响。实验结果表明,当初始COD为1 000 mg/L、反应温度为420℃、反应时间为10 min,反应压力为24 MPa、溶液pH为10、过氧比为400%时,SCWO法对含油污泥的COD去除率为92.20%,收集液COD低于GB8978—1996规定的一级排放标准(100 mg/L)。