电镀废水不同处理工艺实例比较

电镀废水原处理工艺与现处理工艺进行了对比,两套工艺首先均是对含氰废水和含铬废水进行预处理,然后预处理后与酸碱废水均质为综合废水,两套工艺在综合废水处理上发生了较大的变化,原处理工艺为一级物化,出水满足《污水综合排放标准》（GB8978-1996）一级标准;现处理工艺为二级物化,出水满足《电镀污染物排放标准》（GB21900-2008）。     

新型絮凝剂在印染,洗煤及造纸废水治理中的应用

新型絮凝剂是一种阳离子型有机离分子絮凝剂。该絮凝剂有适用范围广、用少量、性能稳定、絮体沉降快等优点。其净化效果：印染废水脱色率为８５％，ＣＯＤ，ＢＯＤ去除率均为９５％；洗煤废水ＣＯＤ、浊度、县浮物去除率都为９９％；造纸废水ＣＯＤ去除率在７０％－８０％，色度去除率为８０％，浊度去除率为９６％。     

含氰含铜电镀废水处理工程实例研究

采用重力分离、二氧化氯氧化、化学沉淀+过滤方法分别对某镀铜车间的含油、含氰、含铜废水进行分类处理,在pH=9的条件下,采用二氧化氯作为氧化剂将CN-氧化为N2;金属铜离子在碱性条件下与氢氧根产生难溶的氢氧化铜,经沉淀过滤后出水,主要污染物去除率达到98.2%,处理后水质达到《电镀污染物排放标准》(GB 21900-2008)和《黄河流域(陕西段)污水综合排放标准》(DB61/224-2011)相关排放要求.     

膜技术在工业废水处理中的应用

膜技术是一种高效率、低能耗和易操作的液体分离技术，在废水处理中得到越来越广泛的应用。在介绍膜技术分类和分离机理的基础上，对膜技术在造纸废水、重金属废水、含油废水、印染废水、食品废水等工业废水处理中的应用进行了综述，最后对膜技术在工业废水处理的应用前景作了展望。     

基于高铁酸钾同步氧化-絮凝技术在污水处理中的研究进展

Fe(Ⅵ)具有较高的氧化还原电位,Fe(OH)3具有良好的絮凝效果,废水处理中高铁酸钾发挥同步氧化和絮凝作用。介绍高铁酸钾处理各种难降解废水的机理,同时分析高铁酸钾投加量、pH、反应温度、反应时间等因素对各种废水去除效果的影响。并提出基于高铁酸钾同步氧化絮凝技术处理污水的局限性和未来的发展方向。     

南泰制革废水治理初探

介绍了仙游南泰制革厂采用物化、生化法二级处理和铬液回收利用的方法处理制革废水,处理后达标排放,效果良好。     

水解酸化-UASB-SBR工艺处理改性淀粉废水研究

以 3种高浓度改性淀粉废水 (氧化淀粉、酯化淀粉和醚化淀粉 )为研究对象 ,采用水解酸化 上向流厌氧生物法(UASB) 活性污泥法 (SBR)组合工艺 ,从设计、调试、运行和技术分析来研究该工艺的可行性。研究结果表明 :该工艺处理改性淀粉废水是可行的 ,对不同种类的改性淀粉废水具有较强的适应性。     

In vitro immunotoxicity of untreated and treated urban wastewaters using various treatment processes to rainbow trout leucocytes

Municipal effluents are known to impede the immune system of aquatic organisms. The purpose of this study was to examine the immunotoxicity of urban wastewaters before and after 6 treatment processes from 12 cities toward trout leucocytes. Freshly prepared trout leucocytes were exposed to increasing concentrations of solid phase (C18) extracts of wastewaters for 24 hr at 15℃. Immunocompetence was determined by following changes in leucocyte viability and the proportion of cells able to ingest at least one (immunoactivity) and at least three (immunoefficiency) fluorescent beads. The influents were treated by six different treatment strategies consisting of facultative aerated lagoons, activated sludge, biological aerated filter, biological nutrient removal, chemically-assisted physical treatment and trickling filter/solid contact. Water quality parameters of the wastewaters revealed that the plants effectively removed total suspended solids and reduced the chemical oxygen demand. The results revealed that the effluents' immunotoxic properties were generally more influenced by the properties of the untreated wastewaters than by the treatment processes. About half of the incoming influents decreased leucocyte viability while 4 treatment plants were able to reduce toxicity. The influents readily increased phagocytosis activity for 8/12 influents while it was decreased in 4/12 influents. This increase was abolished for 4/12 of the effluents using treatments involving biological and oxidative processes. In conclusion, municipal effluents have the potential to alter the immune system in fish and more research will be needed to improve the treatments of wastewaters to better protect the quality of the aquatic environment.     

H_2O_2－O_3氧化法处理染料中间体H酸和1－氨基蒽醌生产废液的研究

研究采用羟基自由基氧化法处理难生物降解染料中间体Ｈ酸和１－氨基蒽醌生产废液提高其生物降解性。研究表明：羟基自由基是一种非常强的氧化剂，能迅速分解有机物，改善废水的生物降解性能；经羟基自由基氧化处理后，能提高废水的絮凝处理效率。本文还对羟基自由基氧化反应机理作了探讨。     

Comparative study of polyhydroxyalkanoates production from acidified and anaerobically treated brewery wastewater using enriched mixed microbial culture

The production of polyhydroxyalkanoates(PHA) from wastewaters using microbial mixed cultures(MMC) has been attracting increased interest because of PHA's biodegradability characteristics. Production of PHA by an MMC enriched with PHA-accumulating bacteria was compared using anaerobically treated and acidified brewery wastewaters under various feeding strategies, namely pulse and batch feed addition. To obtain an enriched MMC, a sequencing batch reactor was inoculated with activated sludge fed with acetate and subjected to aerobic dynamic feeding. The enriched MMC was able to accumulate PHA up to 72.6% of cell dry weight(CDW) with pulse addition of acetate controlled by the dissolved oxygen(DO) concentration in the reactor. In a batch accumulation experiment with acetate,the PHA content achieved(28.5% CDW) was less than that of the pulse feeding strategy with the same amount of acetate(～2000 mg C/L). Using anaerobically treated and acidified brewery wastewater fed in pulses, the maximum PHA accumulated by the enriched MMC was similar for both wastewaters(45% CDW), in spite of the higher volatile fatty acid concentration in acidified brewery wastewater. The pulse feed addition controlled by the DO concentration was difficult to implement for wastewater as compared to acetate because the difference in DO concentration between substrate availability and depletion was low. For the batch addition of acidified wastewater, a slightly lower PHA content(39%CDW) was obtained. These results show that both brewery wastewaters can be utilized for PHA production with a similar maximum PHA storage capacity.     

蚕豆根尖微核技术监测工业废水遗传毒性

用蚕豆根尖微核技术监测淮阴市冶金、化工、印染及制药行业废水的遗传毒性，结果表明淮明市部分工厂废水存在不同程度的遗传毒性。     

Supercritical water oxidation for the destruction of toxic organic wastewaters： A review

The destruction of toxic organic wastewaters from munitions demilitarization and complex industrial chemical clearly becomes an overwhelming problem if left to conventional treatment processes. Two options, incineration and supercritical water oxidation （SCWO）, exist for the complete destruction of toxic organic wastewaters. Incinerator has associated problems such as very high cost and public resentment; on the other hand, SCWO has proved to be a very promising method for the treatment of many different wastewaters with extremely efficient organic waste destruction 99.99% with none of the emissions associated with incineration. In this review, the concepts of SCWO, result and present perspectives of application, and industrial status of SCWO are critically examined and discussed.     

活性炭厌氧流化床处理毒性有机废水存在的问题与对策

活性炭厌氧流不处理毒性有机废水存在问题，对含有活性炭能吸附而生物难降解成份的废水，通过定期替换少量活性炭、能维持工艺的稳定运行。     

细菌发光试验及Ames试验检测工业废水急性毒性及致突变性的研究

应用细菌发光试验及Ａｍｅｓ试验对比研究了武汉市易家墩,黄孝河污灌区工业废水的急性毒性及致突变性册时应用色质谱（ＧＣ／ＭＳ）分离鉴定技术测定了工业废水中有机污染物的化学组成,结果表明,罗家渠废水的急性毒性,致突变活性在所研究废水中最为严重,废水中急性毒性物质主要包括苯酚,苯甲酸苯甲酯等,致突变致癌物包括联苯,萘等。     

大孔树脂吸附法在含酚废水处理中的应用

综述了近１０多年来应用大孔树脂吸附法处理各种含酚工业废水的研究成果和应用实例，包括各种废水的由来与概况、处理工艺条件和应用效果，结果表明，吸附树脂具有吸附效果好，脱附再生容量、性能稳定、适用范围宽、实用性好、可实现综合利用等特点，是处理含酚工业废水的有效方法。     

利用粉煤灰合成沸石处理重金属污水研究

本研究中利用粉煤灰合成沸石对含有Cu^2 、Pb^2 、Cd^2 的制备水样进行批处理振荡实验，其吸附容量分别为9．56、0．89和0．25mg／l。实验证明，用合成沸石处理含重金属离子污水达到平衡所需的时间约为3h。对污水中重金属离子的去除率随pH值降低而降低，随沸石用量增加而增加。同等条件下，利用粉煤灰处理含Cu^2 的污水，其吸附容量仅为6．49mg／l，低于合成沸石。