餐厨垃圾作垃圾渗滤液处理碳源可行性评估  

Feasibility Assessment of Food Waste as a Carbon Source for Municipal Solid Waste Leachate Treatment

作　　者：张瑞娜 兰思杰[2] 曹瑞杰 周涛[2] 刘泽庆 朱子晗 赵由才[2] Zhang Ruina;Lan Sijie;Cao Ruijie;Zhou Tao;Liu Zeqing;Zhu Zihan;Zhao Youcai(Shanghai Environmental Sanitation Engineering Design Institute Co.,Ltd.,Shanghai 200025,China;Tongji University,Shanghai 200092,China)

机构地区：[1]上海环境卫生工程设计院有限公司,上海200025 [2]同济大学,上海200092

出　　处：《山东化工》2021年第10期268-271,共4页Shandong Chemical Industry

基　　金：上海市国资委项目(No.2008001);科委科研计划项目(19DZ1204703)。

摘　　要：餐厨垃圾具有较高的有机碳,可用作碳源,强化渗滤液处理脱氮效果。本论文探究了餐厨垃圾压榨液和浆液作为渗滤液处理碳源的可行性,结果表明,相比于新鲜渗滤液,老龄渗滤液更适宜于添加餐厨垃圾压榨液,但添加比例不宜超过20%;该投加比例下,压榨液和老龄渗滤液缺氧调节30 d内,pH值可回归至中性,COD/NH 4-N的值接近100∶5。餐厨垃圾厌氧发酵液协同老龄渗滤液处理,能够明显提升COD和TN的去除率,分别从84.8%和24.9%提升至92.1%和50.7%。发酵液对老龄渗滤液脱氮具有强化作用,主要是补充缺乏碳源,但在实际工程应用中应控制其添加比例。Food waste has high organic carboncontent,which can be used as a carbon sourcefor municipal solid waste leachate treatment.In this study,the denitrification effect of food waste press fluid and food waste slurry were studied,and the results showed that,the mature leachate was more suitable for adding food waste pressed liquid(addition ratio<20%)compared with fresh leachate.With the addition ratio of 20%,within one month,the pH value could return to neutral,and the value of COD/NH 4-N was close to 100∶5.What's more,the removal rate of COD and TN increased from 84.8% and 24.9% to 92.1%and 50.7%,respectively.Because of the carbon source supplement from food waste pressed liquid,the TN removal rate increased,but the addition proportion of food waste pressed liquid should be controlled due to its high content of oil and salt.

关 键 词：餐厨垃圾 渗滤液 碳源 强化脱氮 

分 类 号：X703[环境科学与工程—环境工程]