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泵与泵站课程教学改革实践与思考 被引量:4
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作者 唐玉霖 邓慧萍 +1 位作者 夏圣骥 颜合想 《教育教学论坛》 2019年第34期141-142,共2页
根据卓越工程师教育培养计划下对给排水科学与工程专业人才培养的需要,针对目前泵与泵站课程教学改革过程中存在的问题,提出了课程的建设与改革的措施与方法,并在教学实践中应用,为进一步深化该课程改革进行了多方面的探索和尝试,以提... 根据卓越工程师教育培养计划下对给排水科学与工程专业人才培养的需要,针对目前泵与泵站课程教学改革过程中存在的问题,提出了课程的建设与改革的措施与方法,并在教学实践中应用,为进一步深化该课程改革进行了多方面的探索和尝试,以提高该课程的教学效果,探索培养卓越工程技术人才的新模式。 展开更多
关键词 泵与泵站 教学改革 工程实践
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Drinking water production by uitrafiltration of Songhuajiang River with PAC adsorption 被引量:31
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作者 xia sheng-ji LIU Ya-nane +1 位作者 LI Xing YAO Juan-juan 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第5期536-539,共4页
In recent years, membrane ultrafiltration (UF) of surface water for drinking water treatment has become a more attractive technology worldwide as a possible alternative treatment to conventional clarification. To ev... In recent years, membrane ultrafiltration (UF) of surface water for drinking water treatment has become a more attractive technology worldwide as a possible alternative treatment to conventional clarification. To evaluate the performance of ultrafiltration membranes for treatment of surface water in North China, a 48-m^2 low pressure hollow fiber membrane ultrafiltration pilot plant was constructed. Ultrafiltration was operated in cross-flow and with powdered activated carbon (PAC) adsorption. Turbidity was almost completely removed to less than 0.2 NTU (below Chinese standard 1 NTU). It was found that PAC addition enhanced organic matter removal. The combined process of PAC/UF allowed to 41% removal of CODMn, 46% removal of DOC and 57% decrease in UV254 absorbance. The elimination of particles, from average 12000/ml in the raw water to approximately 15/ml in the permeated, was observed. When PAC concentration was below 30 mg/L, backwashing could recovery the membrane flux with backwash interval/backwashing duration of 1/30. 展开更多
关键词 surface water drinking water treatment ULTRAFILTRATION powdered activated carbon
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