农业机械学报2012，Vol.43Issue(3)：33-38,6.DOI:10.6041/j.issn.1000-1298.2012.03.007
再生水条件下灌水器内生物膜生长对流量的影响
Effects of Growth of Biofilm to Emitters Flow in Emitter of Reclaimed Wastewater Irrigation
摘要
Abstract
Wastewater irrigation test under biological swimming bed and biological filter was done to study biofilm growth situation in emitters. Results showed that biofilm growth experienced three periods of attachment period, growth period and maturity period, and biofilm was at a dynamic equilibrium state in maturity period. Biofilm was attached fast, growth fast and was the thickest on the inlet of emitters. Detached biofilm deposited on the inside flow or the outlet, which was embodied on the flow changes. The average flow changes of emitter lagged growth change of biofilom. When biofilm reached maturity period, it was detached repeatedly to grow, and this was high-risk period of emitter clogging when the average flow of emitter was declining. After 184 h, acid and chlorine can be added to flush emitter.关键词
灌水器/滴灌/堵塞/生物膜/再生水Key words
Emitter/Drip irrigation/Clogging/Biofilm/Reclaimed water分类
资源环境引用本文复制引用
李贵兵,任树梅,杨培岭,许廷武,李云开,闫大壮..再生水条件下灌水器内生物膜生长对流量的影响[J].农业机械学报,2012,43(3):33-38,6.基金项目
国家自然科学基金资助项目(50779068)和长江学者和创新团队发展计划资助项目(IRT0657) （50779068）
