共查询到20条相似文献,搜索用时 93 毫秒
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传统的河道整治中,通过末端截流措施将雨水污水混合收集,这种方法污水收集率低,溢流污染严重,影响河道水质。对于难以实施雨污分流的区域,通过现代新型弃流装置,提高污水收集率,减少雨水入污量。重点通过污水处理厂扩容、干管织网成片、小区正本清源、支汊流溯源纳污、污水处理厂提质增效、河道生态补水及生态修复,从“系统治理、流域统筹”的角度建立完善长效管护机制,从而使河道实现“长治久清”。 相似文献
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我国很多乡村河道污染严重,整治黑臭水体及污水治理是我国人居环境整治的基础工程。文中为乡村河道污染水体的治理提出一种分级多效能生物反应器(multi-functional biological reactor,MFBR),并给出了其结构组成和采用的污水处理工艺;通过该分级MFBR在乡村河道污水治理的实践应用,展示了生物填料的挂膜效果,并分别测量了应用过程中该分级MFBR的进出水中CODCr、氨氮和总磷含量的变化过程,以反映其污水处理的实时效果以及处理能力。实际应用证明,该分级MFBR可为乡村河道污水的有效治理提供方案。 相似文献
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针对生产污水种类多、污染因素复杂、例行检修污水量过大以及合格污水直接外排造成水资源浪费等问题,研究应用了污水储存技术、复杂污水预处理技术、污水回用循环水及污泥脱水技术,实现了污水的有效回收利用,减少了外排水量和污泥外运量,年节约成本近百万元,提升了环保管理水平,具有良好的经济效益和社会效益。 相似文献
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城市污水处理厂的氮磷的去除成为较难控制的目标,已经成为我国目前多数污水处理厂的现状。本文从十五里河污水处理厂设计工艺流程,实际运行条件出发,选取污水处理厂运行两个月的数据分析入手,分析进水条件,实际控制条件,得出氮磷不达标的原因,同时给出结论和建议。 相似文献
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Magnetic ion exchange (MIEX®) resin can effectively remove significant amounts of organic matter from biologically treated sewage effluent. The MIEX® process has mainly been used as a batch process, which requires a large area for accommodating both contact tank and settling tank in the treatment process. In this study, a fluidized bed MIEX® reactor (a semi-continuous process) was used as a pre-treatment for a submerged membrane. When used as a pre-treatment for a submerged membrane, the fluidized bed MIEX® contactor could remove a significant amount of organic matter in the wastewater (80% removal). This pre-treatment helped to reduce membrane fouling and keep transmembrane pressure low during the membrane operation of 8 h (less than 19 kPa). The regeneration of MIEX® resin (number of regeneration, regeneration time, etc.) did not have any adverse effect on the organic removal by MIEX®. 相似文献
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CMF RO法也称为双膜法,主要应用于污水的深度处理。实验研究以沈阳市满堂河污水处理中心二级出水作为原水质,采用CMF RO法进行深度处理,结果表明出水水质达到了多种类型中水回用水质标准。 相似文献
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小城镇综合污水处理是我国许多城镇发展面临的急待解决的问题,文章通过CASS工艺及人工湿地工艺方案比选,人工湿地是一种投资低、建设运营成本低、工艺简单的新型生态处理系统。该工艺成熟可靠,去除N、P能力强,出水各污染指标均能达到排放要求。在解决小城镇综合污水处理方面具有广阔的应用前景。证明了人工湿地工艺是一种适合小城镇污水处理的新型工艺,适合在小城镇推广应用。 相似文献
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In this study, the maximum solids loading, stability and rheological properties of coal-sludge slurries were investigated and compared with those of coal-water slurries. The maximum solids content of coal-sludge slurry was much lower than that of coal-water slurry because of the ∼82% water in sewage sludge. NaOH addition as a pre-treatment of sewage sludge improved the maximum solids content to 61% and 60% for dispersants A1 and A2, respectively, for a sludge-coal mass ratio of 22.1:100. Compared to coal-water slurries, the stability of coal-sludge slurries was better, with no solid deposition after 96 h. Coal particles and sewage sludge formed a stable medium and settlement of large coal particles was prevented. All the coal-sludge slurries exhibited pseudo-plastic behavior; this type of fluid is shear-thinning and is easy to transport. 相似文献