摘要
用混凝-活性碳-过氧化氢组合工艺处理垃圾渗滤液,探讨了不同处理技术的最佳工艺条件和处理效果。结果表明,pH为4.0、投加200mg·L-1氯化铁、慢速搅拌25min、静置60min时混凝效果最好;而后在室温、pH=3.0、H2O2(质量分数为30%)投加量为5mL.L-1、活性碳与H2O2的质量比为1:2、反应120min时,COD去除率最好。经混凝-活性炭-H2O2组合工艺处理后,垃圾渗滤液中COD、UV254、UV410和UV436的去除率分别能达到89.44%、82.13%、90.625%和91.35%,其中出水中COD为75.69mg·L-1,达到GB16889-2008中污染物的排放限值。
The combination of coagulation-activated carbon/hydrogen peroxide processes was designed for treating the landfill leachate with the high organic content. The optimum treatment conditions were examined through conducting a serious of experiments. After being treated by the coagulation- activated carbon/hydrogen peroxide processes, the removal rates for COD, UV254, UV410 and UV436 levels in the target landfill leachate were improved significantly up to as much as 89.44%, 82.13%, 90.625% and 91.35%, respectively. COD was lowered by 89.44% to 75.69 mg·L^-1. Moreover, the quality of the effluent from the sequential processes treatment meets the emitting concentration limit set by the state standard for municipal solid waste sanitary landfill pollution control （GB 16889- 2008）.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第3期108-111,共4页
Technology of Water Treatment
基金
国家自然科学基金青年基金面上项目(50609008)
华北电力大学校内引进人才科研启动基金
关键词
垃圾渗滤液
混凝
活性碳
过氧化氢
landfill leachate
coagulation
activated carbon
hydrogen peroxide
