聚合硫酸铁处理终端焦化废水的研究

确定了聚合硫酸铁处理终端焦化废水的最佳投药量和 p H值 ,讨论了影响其混凝效果的主要因素。实验结果表明 ,处理后出水 COD、浊度的去除率达 80 %以上 ,对酚、氰的去除率可达到 40 %、5 0 %。     

对染料废水脱色处理的研究

研究以物化处理工艺中的混凝法来处理印染废水,即用高效脱色剂与聚合氯化铝(PAC)和助凝剂聚丙烯酰胺(PAM)混凝来处理,从而考察了PAC的用量、废水的酸碱度和脱色剂的加入量对废水脱色效果的影响,从而得出最佳实验条件.结果表明:在500 mL废水中,当废水酸碱度在7.5~8.5之间,PAC的用量在1.0~1.75 mL之间,高效脱色剂的用量在1.0~1.5 mL之间时,废水脱色效果最好.     

固定化细胞技术处理含酚废水的研究进展

简述了目前含酚废水的一般处理方法,介绍了固定化细胞技术对含酚废水处理的研究进展,并对其存在的问题进行了评述。     

光氧化处理含酚废水的实验研究

以紫外为光源，O3和H2O2作氧化剂分别对含酚废水进行光氧化去除效果的研究．结果表明，联合光氧化法能有效去除废水中的苯酚，在适宜条件下90min内苯酚去除率达到90％以上。试验表明，光氧化法是处理低浓度含酚废水的一种有效方法。     

微电解-SBR组合工艺处理医药化工废水研究

医药化工废水作为一种高浓度、难降解有机废水,其预处理效果直接影响到最终出水水质.以硝基苯类废水为处理对象,采用先进微电解-SBR组合工艺技术进行处理试验.结果表明,经微电解处理医药废水硝基苯类、COD的去除率分别为93%和45%左右.废水的可生化性由约0.24提高到0.55.每吨废水处理成本为2.52元.     

环境监测科研中实验室的环境保护

1.实验废水的处理实验废水有多种多样.在制定废水的处理方案时,要同时考虑废水的分类方法.废水分类方法不是一成不变的,而要根据实验废水的变化而作相应的调整.为此应组织各实验室和有关部门共同进行实验废水的种类、数量的调查和测定.在规定实验废水的分类方案时,应注意:以实验废水调查测定的结果为基础;以确定实验废水处理方法为依据,分类方案不应对处理方法产生干扰.确定的处理方法所不能处理的废液(物质)应另列一类,危害性毒性大的物质优先分类或就地处理(就在该实验室.原经手人员就地销毁或进行无害化处理).     

紫外分光光度法测定废水中的酚

酚的工业污染来自炼油、炼焦、煤气洗涤和某些化工厂的废水中.寻求和不断改善测酚方法,具有现实意义.测定水体中的酚,通常以苯酚作标准品,消除干扰物后使用4-氨基安替比林显色后进行比色定量测定.我们在工作中采用紫外分光光度法直接测定,取得较满意的结果,测定方法如下.一、干扰物的消除较为清洁的水样可蒸馏一次,取馏出液直接测定,对于污染严重的水样在蒸馏前要用下法消除干扰物.     

MBR在印染前处理废水中的应用研究

选用MBR工艺,通过单因素实验控制,考察了MI,SS、HRT、Nv、DO及反应温度T等因素对印染前处理废水COD去除率的影响,初步优化了MBR工艺的运行参数。对印染前处理废水COD：4000-7000mg·L^-1的水质样例,在MLSS20g·L^-1、HRT24h、Nv2．0KgCOD·m^-3·d^-1、DO2．5mg·L^-1及T27℃条件下,MBR系统COD去除率稳定在85％以上,出水COD保持在1000mg·L^-1以下。实验表明,针对印染前处理废水COD含量高且波动大的情况,MBR是一种高效、快捷的处理工艺。     

用蒸馏水代替无酚水测定挥发酚

《水和废水监测分析方法(第4版)》规定,测定挥发酚的实验用水需为无酚水。无酚水的配制方法较繁,今进行了用蒸馏水代替无酚水的试验。     

铁路机车工厂含油废水处理试验研究

本研究根据铁路机车工厂含油废水的排放特点，经过静态和生产性动态模型试验，确定了调节隔油沉淀－－混凝沉淀－－砂滤的处理工艺。混凝沉淀处理后油和ＣＯＤ去除率在９０％和８０％以上，砂滤出水油和ＣＯＤ去除率分别达９５％和９０％，出水浊度低于２度。此水质可回用于有关生产车间。静态和动态对比试验表明，静态试验结果可应用于生产性设计、该处理工艺切实可行。     

Assessing the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units

Wastewater reuse can significantly reduce environmental pollution and save the water sources. The study selected Cheng-Ching Lake water treatment plant in southern Taiwan to discuss the feasibility of wastewater recycling and treatment efficiency of wastewater treatment units. The treatment units of this plant include wastewater basin, sedimentation basin, sludge thickener and sludge dewatering facility. In this study, the treatment efficiency of SS and turbidity were 48.35–99.68% and 24.15–99.36%, respectively, showing the significant removal efficiency of the wastewater process. However, the removal efficiencies of NH₃–N, total organic carbon (TOC) and chemical oxygen demand (COD) are limited by wastewater treatment processes. Because NH₃–N, TOC and COD of the mixing supernatant and raw water are regulated raw water quality standards, supernatant reuse is feasible and workable during wastewater processes at this plant. Overall, analytical results indicated that supernatant reuse is feasible.     

Spatio-temporal variations of organic carbon and chlorophyll degradation products in the surficial sediments of Izmir Bay (Aegean Sea/Turkey)

The aim of this research is to determine the effects of Izmir Big Channel Waste Water Treatment Project on the sediment quality of Izmir Bay. Wastewater treatment improves the water quality. However, sediment does not respond to this treatment as fast as water column. Monitoring of bottom water and sediment quality is necessary for identification of the recovery of the whole ecosystem. For this purpose, bottom water and sediment samples were collected from three stations which are located in the middle and inner parts of the Izmir Bay on a monthly basis between January 2003 and December 2003. Values measured at stations ranged between; 0.54-12.82 microg/L for chlorophyll-a, 0.09-9.32 microg/L for phaeopigment, 0.05-1.91 mg/L for particulate organic carbon in bottom waters, 11.88-100.29 microg/g for chlorophyll degradation products and 1.12-5.39% for organic carbon in sediment samples. In conclusion, it was found that grazing activity explained carbon variations in sediment at station 2, but at station 1 and station 3 carbon variations in sediment were not related to autochthonous biological processes.     

执行GB 18918-2002《城镇污水处理厂污染物排放标准》的思考

比较了GB18918—2002《城镇污水处理厂污染物排放标准》与相关行业和国家标准的特点,指出执行GB18918—2002《城镇污水处理厂污染物排放标准》的关键应是充分了解和掌握被执行对象所处的地理位置、建厂年限、处理工艺、污染物排放去向及用途等基本信息。提出选择控制项目的确定、监测能力的开发、大气污染物的配套治理手段和超标项目的配套管理办法是执行GB189182002《城镇污水处理厂污染物排放标准》时尚需深入解决的问题。     

Fate Modelling of DEHP in Roskilde Fjord, Denmark

The fate of di(2-ethylhexyl)phthalate (DEHP) is modeled in Roskilde fjord, Denmark. The fjord is situated near Roskilde, which comprises 80,000 PE, various industries, a central wastewater treatment plant, and adjacent agricultural fields. Roskilde fjord is thus a suitable recipient for studying the transport and fate of DEHP, which is used in a variety of different industries and consumer products. Wastewater from households and industries is led to the local wastewater treatment plant, which leads the effluent to the fjord. The sludge is partly stored and partly amended on an adjacent field. The model applied in the present study is a simple box model coupling water and sediment compartments of the fjord with wastewater treatment plant effluent, streams leading to the fjord, and atmospheric deposition. The fjord model comprises first-order degradation, adsorption, sedimentation, vertical diffusion in the sediment, dispersive mixing in the water, and water exchange with the surrounding sea. Experimental measurements of DEHP were made in the fjord water and sediment, in the wastewater treatment plant inlet and effluent, and in streams and atmospheric deposition. The experimental data are used to calibrate the model. The model results show that freshwater from streams is the predominant DEHP source to the fjord, followed by atmospheric deposition and effluents from wastewater treatment plants. Sedimentation is the predominant removal mechanism followed by water exchange with the sea and degradation.     

我国污水资源化战略探讨

当前我国用水面临水资源短缺和水环境恶化的双重考验,污水资源化是解决水资源短缺和水环境恶化的有效途径。本文根据对我国污水资源化实施状况的调查分析,探讨了我国开展污水资源化的若干战略因素。     

长湖流域水质时空分布特征及影响因子

利用2009—2014年长湖5个水质监测点数据,采用时间序列法分析了长湖水质的时间变化规律,采用相关性分析法,分析了流域水污染的影响因子。结果表明:在时间上,长湖水污染物质量浓度季节变化明显,COD、TN、NH3-N均为7、9月较低,1、3月较高,丰水期水质好于枯水期。入湖地区TP质量浓度7月达最高值,且7月份入湖地区的桥河口、关沮口的NH3-N、TN含量稍高于5月。空间上,西北部入湖地区水质劣于湖心及东南部出湖地区。工业、生活等点源污水,以耕地为主的农业非点源以及天然降水量和径流量是影响水质的主要因素,入湖排污量、降水量和径流量与长湖水质呈显著相关关系(P0.05)。     

油墨油脂废水生物接触氧化法研究

本文通过试验研究了油墨油脂废水用生物接触氧化处理的可行性，指出微生物必须要经过驯化过程，使其对该种废水有很好的适应性，才能保证处理稳定。     

实验室"三废"的处理方法

论述了含氰等7类实验室常见废弃物的处理方法，介绍了一种有机溶剂和3种贵重金属的回收与提纯，经防止实验室污染事故的发生。     

奎屯市区城市废水排污系统网络化的探讨

根据奎屯市区城市废水的排放量大、排污口多、污染物浓度高以及排污下水管道污水处理设施的建成现状等特点，提出了以污水处理厂为治理中心，市区排污管道网络化的改造设想、存在问题及对策。     

微生物监测在啤酒工业废水处理中的应用研究

用活性污泥工艺处理啤酒工业废水,通过长期对活性污泥生物相中主要微生物的监测表明,其种类和数量变化与处理系统进、出水水质变化密切相关。以此了解系统运行状况、判断工艺故障获得了满意效果。