春季果蔬类废弃物在厌氧条件下产生挥发性脂肪酸(VFAs)的效果  

Production of volatile fatty acids (VFAs) from spring vegetable andfruit waste under anaerobic conditions

作　　者：夏金雨[1] 王仕 王雨桐 杨洁[4] XIA Jinyu;WANG Shi;WANG Yutong;YANG Jie(Suzhou Environmental Sanitation Adnition Administration Agency,Suzhou 215107,China;Nanjing University Environmental Planning and Design Institute Co.Ltd.,Nanjing 211800,China;Suzhou Daobo Environmental Protection Technology Service Co.Ltd.,Suzhou 215128,China;School of Environmental Science and Engineering,SUST,Suzhou 215009,China)

机构地区：[1]苏州市环境卫生管理处,江苏苏州215007 [2]南京大学环境规划设计研究院集团股份公司,江苏南京211800 [3]苏州道博环保技术服务有限公司,江苏苏州215128 [4]苏州科技大学环境科学与工程学院,江苏苏州215009

出　　处：《苏州科技大学学报（自然科学版）》2023年第4期54-59,共6页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：国家自然科学基金项目(42377051);城乡和住房建设部科技示范项目(S20220395);苏州市民生科技项目(SS202027);苏州市科技计划项目(SS202001)。

摘　　要：果蔬类废弃物是餐厨垃圾中重要的一类,其产生量不可小觑。对餐厨垃圾进行厌氧消化处理,产生的挥发性脂肪酸(VFAs)可以用于污水处理厂脱氮除磷的外加碳源。论文通过间歇模式研究了春季时令果蔬组合在厌氧水解过程中产生挥发性脂肪酸的效果,并考察了VFAs的浓度、组成以及VS(挥发性固体)转化率等指标随时间的变化。研究结果表明,在pH值为6、温度为35℃的间歇模式下,春季果蔬类废弃物的产酸效果良好,VFAs转化率为0.36 g·(gVfed)^(-1)。Vegetable and fruit waste is an important category of kitchen waste,and its amount generated should not be underestimated.Anaerobic digestion of kitchen waste and volatile fatty acids(VFAs)can be used as additional carbon sources for nitrogen and phosphorus removal in sewage treatment plants.In this paper,we studied the effect of spring seasonal fruit and vegetable combinations on the production of volatile fatty acids during anaerobic hydrolysis using an intermittent mode,and examined the changes in VFAs concentration,composition,and VS(volatile solid)conversion rate over time.The results show that in the intermittent mode of pH 6 and temperature of 35℃,the acid production effect of fruit and vegetable wastes in spring was good,and the conversion rate of VFAs was 0.36 g·(gVfed)^(-1).

关 键 词：果蔬类废弃物 厌氧消化 挥发性脂肪酸(VFAs) 

分 类 号：X705[环境科学与工程—环境工程]