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。     

石油钻杆刷镀铜废水处理

油田钻杆刷镀铜废水的铜离子严重超标，为解决这一问题，应用硫化钠（Na2S·9H2O）化学沉淀法处理工艺及设备处理废水。经监测，处理后的废水符合国家排放标准，具有处理设施一次性投资少，操作方便，处理效果好，处理成本适当等优点。硫化钠化学沉淀法处理刷镀铜废水达到了国家排放标准。     

混凝-超滤组合工艺处理鱼粉加工废水

鱼粉加工废水COD_Cr很高,需要进行处理后才能排入市政管网。开发了混凝-超滤组合处理鱼粉加工废水的新工艺,确定了混凝剂、助凝剂的最佳投量,以及超滤膜工艺的运行参数。实验结果表明,利用混凝-超滤组合工艺处理鱼粉加工废水,处理后的水COD_Cr为264 mg/L,达到《污水排入城镇下水道水质标准》(CJ343-2010)的排放标准。     

预处理-UASB-接触氧化工艺处理S-诱抗素生产废水

S-诱抗素生产过程中产生的废水COD Cr浓度高、含难降解大分子物质、冲击负荷高、可生化性差,采用预处理-两级UASB-接触氧化法组合工艺处理取得了良好的效果。工程实践表明,废水中COD Cr、NH3-N的去除率分别达99.9%、99.6%,出水可稳定达到《污水综合排放标准》(GB8978-1996)一级排放标准,处理效果良好。     

气浮-淹没式生物膜工艺处理牛仔布洗漂废水

采用高效气浮-淹没式生物膜组合工艺处理牛仔布洗漂废水。结合工程实际,介绍牛仔布洗漂废水处理工程的设计和调试情况,工艺实践运行表明,该工艺处理效果好、运行稳定。各项指标均可达到广东省地方标准《水污染物排放限值》（DN44／26-2001）中规定的第二时段一级排放标准。     

物化-生化-深度处理工艺处理苎麻脱胶废水

苎麻脱胶废水采用物化-生化-深度处理工艺处理后，经验收监测COD去除率可达95．7％，废水水质达到《污水综合排放标准》GB8978—1996一级标准的要求。物化一生化一深度处理工艺处理苎麻脱胶废水技术可行、效果稳定。     

含铜废水处理技术现状

含铜废水主要来源于工业生产过程，如不经过适当处理排入环境，将给环境带来极大危害。含铜废水的主要处理方法有化学沉淀法、离子交换法、电解法等。由于各生产过程不同，废水中铜的存在状态与价态都各有差异，对于不同类型含铜废水的处理应依据废水性质，选用不同工艺或工艺组合对废水进行处理，以满足排放标准的要求。同时在处理含铜废水时，应考虑处理后出水的回用和废水中铜的资源化问题。     

“以废治废”在阳极氧化废水处理工程中的应用

采用"以废治废"物化处理+泥层过滤+SBR反硝化深度生物脱氮组合工艺处理铝合金表面阳极氧化废水,工程实践效果良好,出水达到《电镀污染物排放标准》(GB 21900—2008)中表2的排放要求且工艺流程短、操作简单、投资少、运行费用低。     

废水处理新技术─—LPC法

ＬＰＣ法（物理化学凝聚法）处理废水新技术，可使工业废水在５－１０分钟内变清，各项排放指标均达到国家规定标准。由四川亚太水处理技术工程设计所设计的ＬＰＣ法处理废水新技术取得成功。该技术是采用物理化学凝聚法（ＬＰｃ法），能在５－１０分钟内，将混浊不清的工业废水变得透亮。经运用证明：采用该技术可使废水中的有害物质和色度的脱除率达到８０％－９０％，符合国家规定的排放标准，而且８０％的水可循环使用。     

A/O法合并处理煤转气废水和生活污水

探讨了A/O法合并处理煤转气废水和生活污水的工艺原理及试运行效果。实践证明,该方法是处理高浓度煤转气废水的简单新方法,经处理后的污水可达到国家规定的排放标准。     

A review of textile industry: Wet processing,environmental impacts,and effluent treatment methods

The word “textile” means to weave and was taken from the Latin word “texere.” Nowadays, textiles not only fulfill humankind's basic necessity for clothing, they also allow individuals to make fashion statements. As one of the oldest industries, the textile industry occupies a unique place in India. It is responsible for 14% of the total industrial manufacture in India. However, the textile industry is also considered to be one of the biggest threats to the environment. Pretreatment, dyeing, printing, and finishing operations are among the various stages of the industrial textile manufacturing process. These fabrication operations not only utilize huge quantities of power and water, they also generate considerable amounts of waste. The textile industry utilizes a number of dyes, chemicals, and other materials to impart the required qualities to the fabrics. These operations produce a significant amount of effluents. The quality of effluents is such that they cannot be put to other uses, and they can create environmental problems if they are disposed of without appropriate treatment. This review discusses different textile processing stages, pollution problems associated with these stages, and their eco‐friendly alternatives. Textile wet processing is described in detail, as it is the key process in the industry and it also generates the greatest amount of pollutants in textile processing. The environmental impact of textile effluents is discussed, as textile effluents not only impose negative effects on the quality of water and soil, they also imperil plant and animal health. In this paper, various methods for treating textile effluents are described. Discussion of physical, chemical, biological, and advanced treatment technologies of effluent treatment are included in this paper.     

Removing color and chlorinated organics from pulp mill bleach plant effluents by use of flyash

Color and chemical oxygen demand (COD) in bleach plant effluents are of concern. Acidified flyash can effectively remove both color and COD from caustic bleach plant effluents. Equally effective, but quicker and easier, is to acidify the effluent to approximately pH 1 and use untreated flyash. Based on maximum color removal, the required contact time is short, about 10 min, and the optimum ash dosage is that amount which raises the pH of the final effluent to about 5. Sufficient color removal is obtained to easily meet Maine's color regulations. Preliminary tests on samples of deionized water spiked with two arochlors of PCB showed high removal efficiency.The major cost of implementing and operating the cleanup procedure will be the cost of the required acid. This might be minimized by using some of the acidic (chlorine) effluent to lower the pH of the caustic effluent. This will, however, lead to less color reduction, and an unknown effect on the COD.     

城市生活垃圾焚烧发电设施二恶英实测分析

垃圾焚烧是二噁英重要来源之一。本文对城市生活垃圾焚烧发电设施排烟和设施周边的二噁英浓度进行实测与分析，结果表明，合理控制垃圾焚烧锅炉运行工况，可以有效控制焚烧过程中二恶英生成，使其达到国家排放标准。     

Investigation and proposal for reuse of effluents from beneficiated bentonite products

This work is intended to show the characterization of three effluents (X, Y, and Z) derived from laboratory analyses conducted in the quality control department of a beneficiated bentonite products factory in order to present alternatives for their treatment and final disposal according to Brazil's National Solid Waste Policy (Política Nacional de Resíduos Sólidos – PNRS, Law 12,305/2010, Brazil). Analyses to identify the characteristics of the effluents revealed that the pH, salinity, electroconductivity, and total dissolved solids were in agreement with the organic and mineral nature of the effluent constituents: solvent, clay minerals, water, and activating agent. To assess reuse proposals, the effluents were subjected to the following tests: (a) swelling characteristic with effluent X, (b) petrochemical characterization of Y, and (c) swelling characteristic using commercial solvent and activated clay produced with effluent Z. Preliminary results indicate that each of these effluents can be reused variously in the laboratory, as a fuel, or in the original analysis/process.     

油田作业区生活污水处理设计与运行

倒置A2/O悬浮填料生物膜处理工艺,能有效解决生物脱氮除磷工艺中的泥龄矛盾。其工艺简单、运行低耗、处理高效、抗冲击能力强的特点在宣汉采气作业区的生活污水处理工程中得以应用,适合油田作业区生活污水的处理。在来水波动较大时,出水也可达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准。     

钻井废弃物无害化处理技术研究及应用

通过对钻井废弃物成分和环境影响的分析,指出川渝地区钻井废弃物固化处理中存在的问题:固化物浸出液中污染物难以达标。对钻井废弃物通过采用破胶固化工艺进行处理,固化物浸出液分析结果表明:COD等达到了GB8978-1996《污水综合排放标准》一级标准,采用该技术和工艺进行现场实施,检测结果达标。     

烟气海水脱硫排水水质对周边海域的影响分析

从理论计算和国内外已投运工程的实际运行监测两方面，对海水脱硫排水水质进行了分析，结果表明在采用成熟工艺的前提下，海水脱硫的排水水质包括重金属等指标，全部可以达到我国海水三类标准，绝大部分指标满足海水一类标准，而且通过对国内外已经投运项目的长期监测，也未发现对周围海域的生态环境造成不利影响。     

气浮--厌氧--生物接触氧化工艺处理屠宰废水

介绍了采用气浮-厌氧-生物接触氧化工艺处理屠宰废水的工程实例。当进水CODcr≤4500mg／L时，出水可达到国家《肉类加工工业污染物排放标准》(GB13457—1992)一级标准。     

Preliminary study of physico-chemical treatment options for hospital wastewater

Hospital effluents are loaded with pathogenic microorganisms, partially metabolized pharmaceutical substances, radioactive elements, and other toxic substances. Such effluents if not treated properly can damage the natural environment and create a biological imbalance. This paper points out the areas of concern for hospital wastewater disposal and reports the findings of a limited physico-chemical study of treatment options for hospital effluents conducted at Christian Medical College and Hospital, Vellore, Tamil Nadu. The effluent collected was checked for conventional parameters and subjected to coagulation experiments. The raw and settled effluents were coagulated with FeCl(3), filtered and disinfected. Physico-chemical treatment seems to be an attractive option for the cost-effective disposal of hospital effluents. The results of this study call for further detailed study in this area.     

含油泥砂洗涤法在大港油田的应用

含油泥砂洗涤法可以将含油泥砂中混合的原油、泥、砂回收并重新资源化利用,且处理过程中不产生新的污染物。大港油田应用含油泥砂洗涤法对北部地区产出的含油泥砂进行处理,处理后的泥砂浸出液COD、石油类等指标均能达到GB 8978-1996《污水综合排放标准》一级标准,处理后的泥砂符合JTJ034-2000《公路路面基层施工技术规范》中的石灰工业废渣稳定土抗压强度标准,符合道路修筑用土的抗压强度要求。