本文以某油田原水处理厂地上 GRE(玻璃纤维增强环氧树脂)管道施工为研究对象,深入分析该地区特殊环境条件对施工的影响。详细阐述施工前准备阶段的管材管件检验、施工场地布置、施工方案编制,施工阶段的管道支吊架安装、管道连接、坡度...本文以某油田原水处理厂地上 GRE(玻璃纤维增强环氧树脂)管道施工为研究对象,深入分析该地区特殊环境条件对施工的影响。详细阐述施工前准备阶段的管材管件检验、施工场地布置、施工方案编制,施工阶段的管道支吊架安装、管道连接、坡度与垂直度控制,以及施工后检查与测试环节的要点。通过理论分析与实际案例相结合,为地区类似原水处理厂地上 GRE 管道施工提供全面的指导,确保施工质量和原水处理系统的稳定运行。展开更多
Sludge production is an avoidable problem arising from the treatment of wastewater. The sludge remained after municipal wastewater treatment contains considerable amounts of various contaminants and if is not properly...Sludge production is an avoidable problem arising from the treatment of wastewater. The sludge remained after municipal wastewater treatment contains considerable amounts of various contaminants and if is not properly handled and disposed, it may produce extensive health hazards. On the other hand, this sludge has benefit for plants and soils. Sludge samples were collected over a 12 month period from sewage treatment plants （STP＇s）, i.e, Khairathabad and Meeralam Tank, Hyderabad, India and analyzed for C, H, N, S by elementar analyzer, P, K, Ca, Mg by spectrophotometer and heavy metals like Zn, Pb, Ni, Cu, Cd by atomic absorption spectrophotometer. The sludge contained approximately 50% organic matter and 1-4% inorganic carbon. Organic and inorganic carbon, organic nitrogen, inorganic phosphorous, Ca and Mg were found to be present in sludge at a relatively constant concentration with respect to sampling time. Inorganic N, organic P, K, and all metals were found to be quite variable with time when sludge produced from different STP＇s.展开更多
文摘本文以某油田原水处理厂地上 GRE(玻璃纤维增强环氧树脂)管道施工为研究对象,深入分析该地区特殊环境条件对施工的影响。详细阐述施工前准备阶段的管材管件检验、施工场地布置、施工方案编制,施工阶段的管道支吊架安装、管道连接、坡度与垂直度控制,以及施工后检查与测试环节的要点。通过理论分析与实际案例相结合,为地区类似原水处理厂地上 GRE 管道施工提供全面的指导,确保施工质量和原水处理系统的稳定运行。
文摘Sludge production is an avoidable problem arising from the treatment of wastewater. The sludge remained after municipal wastewater treatment contains considerable amounts of various contaminants and if is not properly handled and disposed, it may produce extensive health hazards. On the other hand, this sludge has benefit for plants and soils. Sludge samples were collected over a 12 month period from sewage treatment plants （STP＇s）, i.e, Khairathabad and Meeralam Tank, Hyderabad, India and analyzed for C, H, N, S by elementar analyzer, P, K, Ca, Mg by spectrophotometer and heavy metals like Zn, Pb, Ni, Cu, Cd by atomic absorption spectrophotometer. The sludge contained approximately 50% organic matter and 1-4% inorganic carbon. Organic and inorganic carbon, organic nitrogen, inorganic phosphorous, Ca and Mg were found to be present in sludge at a relatively constant concentration with respect to sampling time. Inorganic N, organic P, K, and all metals were found to be quite variable with time when sludge produced from different STP＇s.
