共查询到17条相似文献,搜索用时 125 毫秒
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简述了化粪池的使用现状,分析了化粪池使用中存在的问题,介绍了化粪池的布置和设计,展望了化粪池的发展趋势,指出化粪池的设置应与城市污水处理统筹考虑。 相似文献
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1、基本原理1.1HFRP-A埋地式玻璃钢化粪池HFRP-A型化粪池使用高分子材料与高强度玻璃钢纤维复合制成的圆筒型整体化粪池,与传统砖混化粪池相比, 相似文献
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通过施工及管理的经验,对国标化粪池及圆形化粪池在冬季施工,工程造价,占地面积以及使用年限等方面进行经济技术比较,论述了圆形化粪池适用于东北地区的使用 相似文献
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建议在城市污水处理系统完善的情况下取消化粪池 总被引:3,自引:0,他引:3
介绍了化粪池的原始作用,目前存在的问题及弊端,探讨了化粪池的设置对污水处理厂中的脱氮除磷工艺不利影响,建议在城市污水系统完善的情况下取消化粪池。 相似文献
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简述了化粪池的使用现状及在应用中存在的问题,介绍了生物强化技术在处理化粪池中残积物的应用,分析得出利用微生物菌剂处理化粪池污泥具有良好的社会、经济、环境效益。 相似文献
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复合式竹丝填料生物反应器处理化粪池出水 总被引:4,自引:0,他引:4
为寻找适合化粪池出水的处理工艺,采用批式试验研究了复合式竹丝填料生物反应器对化粪池出水中COD、SS的去除效果。结果表明:复合式竹丝填料生物反应器能有效去除化粪池出水中的COD和SS,平均去除率分别达到了85.4%和90%以上;复合式竹丝填料生物反应器的微生物数量较多、微生物链较长、微生物种群丰富;复合式竹丝填料生物反应器中的污泥增加量极少。将复合式竹丝填料生物反应器内的活性污泥和竹丝分开组成两个独立的生物反应器并处理化粪池污水,结果发现,竹丝生物膜反应器能在短期(18h)内超过活性污泥反应器的处理效果,且竹丝生物膜反应器的产泥量很低。可见,竹丝填料较为适合处理化粪池出水,是一种价格低廉、污染少、运行管理费用较低的良好填料。 相似文献
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Nutrient loading on subsoils from on-site wastewater effluent, comparing septic tank and secondary treatment systems 总被引:1,自引:0,他引:1
The performance of six separate percolation areas was intensively monitored to ascertain the attenuation effects of unsaturated subsoils with respect to on-site wastewater effluent: three sites receiving septic tank effluent, the other three sites receiving secondary treated effluent. The development of a biomat across the percolation areas receiving secondary treated effluent was restricted on these sites compared to those sites receiving septic tank effluent and this created significant differences in terms of the potential nitrogen loading to groundwater. The average nitrogen loading per capita at 1.0 m depth of unsaturated subsoil equated to 3.9 g total-N/d for the sites receiving secondary treated effluent, compared to 2.1 g total-N/d for the sites receiving septic tank effluent. Relatively high nitrogen loading was, however, found on the septic tank sites discharging effluent into highly permeable subsoil that counteracted any significant denitrification. Phosphorus removal was generally very good on all of the sites although a clear relationship to the soil mineralogy was determined. 相似文献
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Mathematical model for predicting sludge accumulation in septic tanks based on operational parameters: effect of hydraulic mixing 下载免费PDF全文
Fares Al Momani 《Water and Environment Journal》2015,29(4):499-506
Reporting sludge accumulation in septic tanks as a constant rate is no longer accepted, and there is a need for a model that predicts sludge accumulation in septic tanks taking into consideration the continuous consumption of sewage solids by microorganisms. This study presents the development of mathematical model that predicts sludge accumulation in septic tanks and to investigate the effect of mixing on solids digestion. The mathematical model takes into consideration the effect of different operational parameters (influent and effluent) as well as the bacterial kinetics in predicting the sludge accumulation in septic tanks. The model predicts with R2 > 0.88 the sludge accumulation rate in standard septic tank calculated by empirical models developed by Weibel in 1955, and by Bounds in 1995. The model was also used to estimate the typical pump‐out interval for different tank volumes and the sludge accumulation inside septic tanks at different operational parameters. 相似文献
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通过对某大型项目4台钢储罐基础环墙充水试压后产生不同程度的裂缝进行分析,介绍了可能产生裂缝的原因,并结合钢储罐环墙基础的设计以及钢筋混凝土环墙受力分析,对钢储罐环墙基础提出设计建议,从而有效减少钢储罐环墙基础裂缝的产生。 相似文献
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本文根据闽南能源油库实际项目的设计,对固定冷却水系统及泡沫灭火系统设计进行了详细的介绍与分析,并确定了可行的油罐区消防系统。 相似文献