共查询到19条相似文献,搜索用时 218 毫秒
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宝鸡发电厂于1982年7月在水处理室与灰浆池之间铺设了一条陶瓷管道,将化学除盐设备酸(HCl)、碱(NaOH)再生废液及冲洗水排入灰浆池,与灰水混合后,经冲灰管排往灰场。经过七年来的运行实践,证明采用这一技术措施可消除除盐设备再生废液对水体环境的酸碱污染。对防止冲灰管结垢,减少冲灰管维护费用等效果显著。现 相似文献
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根据混床离子交换树脂电再生(EIR)的试验研究结果,从电再生方式、试验曲线和机理等几方面,说明了混床EIR过程的特点.掌握了这些特点,就能找出强化混床EIR过程的措施,优选出最佳的工艺操作参数,设计出适合于工程应用的混床EIR装置,从而早日实现混床EIR的产业化. 相似文献
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氧化絮凝复合床在火电厂生活污水处理中的应用 总被引:4,自引:0,他引:4
氧化絮凝复合床水处理新技术(OFR)利用电解氧化法去除废水中有机污染物,具有系统简单,运行稳定,投资少,占地面积小,处理效果明显等优点,适合于火电厂及城市的生活污水处理。 相似文献
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简要叙述了目前电厂水处理中几种固液分离技术的应用现状和使用效果,重点介绍两相流固液分离新技术的运行机理,工业性试验,电厂废水资源化回用处理示范工程以及对电厂现有水源水处理设施的改造情况,并对新建电厂水源水处理和废水资源化回用处理设计提出了一些建议。 相似文献
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徐州电厂超超临界1000MW机组投产后及时采用了给水加氧处理技术,介绍了1号机组给水加氧转换过程、水汽指标的变化情况。加氧处理技术实施后水汽系统含铁量显著降低,精处理混床运行周期延长,加药量减少,效果显著,提高了机组运行的经济性和安全性。 相似文献
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采用芳香聚酰胺膜(NF-1#)、复合膜(NF-2#)和聚酰胺复合膜(NF-3#)深度处理棉针织品印染废水,考察了膜分离性能及膜污染情况的影响因素。实验结果表明,在操作压力为0.5MPa、废水温度为25~35℃、废水pH为7的条件下,NF-1#膜处理效果最佳,COD去除率最高,为76.0%~85.0%;脱盐率也最高,达90.0%。膜过滤后浓水送污水厂处理,产水回用于车间生产。操作压力增高、废水温度升高和废水pH增大均导致滤饼层阻力(Rc)和膜过滤过程中的总阻力(Rt)增加,Rc是Rt的主要组成部分,同时也是导致膜透过通量下降的主要因素。 相似文献
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采用“机械加速澄清—重力式过滤—离子交换—除碳—高效反渗透” 工艺处理某电厂废水,将反渗透产水作为冷却塔补水。运行结果表明:弱酸阳离子交换器出水碱度≤0.10 mmol/L、硬度≤0.02 mmol/L、浊度≤0.2 NTU,满足高效反渗透对进水水质的要求;高效反渗透产水浊度<0.1 NTU,CODMn≤0.08 mg/L,硬度≤1.12 mg/L,碱度≤8.40 mg/L,ρ(总铁)<10 μg/L,ρ(总硅)<0.5 mg/L,电导率<45 μS/cm,出水水质满足回用要求。针对该系统存在的自用水率高、过滤器污堵以及水量不平衡等问题提出了相应的建议。 相似文献
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《Waste management & research》1990,8(6):405-417
The design of lagoons for the dewatering and retention of ash from pulverised coal burned in a power plant in Hong Kong is described. To reduce pollution of nearby oyster beds the sea water used to convey the ash as a slurry is decanted and returned to the power plant for discharge into deep water. 相似文献
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脱硫废水生化处理初探 总被引:1,自引:0,他引:1
火电厂烟气脱硫过程产生的废水中污染物主要包括悬浮物、过饱和的亚硫酸盐、硫酸盐以及重金属等,燃煤电厂烟气系统增设脱硝装置后,进入脱硫废水的氨氮、总氮含量急剧增加。通过对国内外多个电厂的脱硫废水处理系统运行情况的调研及分析,采用厌氧氨氧化工艺作为废水脱氮方式是可行的。 相似文献
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Gauhar T. Alkenova Tatyana V. Kovrigina Tulegen K. Chalov Edil E. Ergozhin 《补救:环境净化治理成本、技术与工艺杂志》2015,25(4):111-126
The paper focuses on the development of production methods for new ion‐exchange membranes on the basis of ED‐20 industrial epoxide resin, resorcinol diglycidyl ether (RDGE), vinyl ether of monoethanolamine (VEMEA), and different di‐ and polyamines (polyethylenepolyamine (PEPA), polyethyleneimine (PEI), and hexamethylenediamine (HMDA)) in the presence of polyvinyl chloride (PVC) as a thermoplastic polymer binder. With the purpose to establish optimum conditions for synthesis of interpolymer membranes, the influence of reactants' concentration, of the temperature, of the nature and the quantity of the solvent, and of the process duration, was studied. It was found that when the VEMEA content in the reaction mixture is increased, the static exchange capacity (SEC) of the membrane increases in the presence of: PEI in the range of 1.2 to 4.7 mEq/L; PEPA: 1.0 to 4.0 mEq/L; and, HMDA: 1.4 to 5.2 mEq/L. It was shown that the optimum synthesis conditions are heating the reaction mixture to 60 °C to 70 °C for six to seven hours with constant stirring. For increasing the basicity of membranes, N‐alkylation was carried out using known alkylating agents (methyl iodide, dimethyl sulfate, and epichlorohydrin (ECH)). The primary electrochemical and physic‐mechanic properties of the obtained membranes were studied on pilot electrodialysis cells. The process flow diagram of the electrodialysis plant, as well as the engineering design documentation thereof were developed, and a pilot electrodialysis plant was constructed. The maximum production capacity of the pilot plant was 600 L/hr with a 30 percent desalinization rate. To increase the desalinization rate up to 75 percent, circulation of the solution and a decrease of production capacity was suggested. For meeting the treated water requirements in terms of salt content, a partial recirculation mode was introduced. In the course of the studies conducted, a process flow diagram was developed, and an experimental installation and a pilot reverse osmosis plant were fabricated for phenol and ammonium nitrogen purification. The pilot plant was tested using process condensate from the Pavlodar Petrochemical Plant. It was found that prior oxidation of the condensate with ozone in alkali medium resulted in phenol purification up to 85 percent and ammonium nitrogen up to 93 percent. ©2015 Wiley Periodicals, Inc. 相似文献
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