生活垃圾中转站恶臭末端治理工程实例分析

Example Analysis of Odor Terminal Treatment Project in Domestic Waste Transfer Station

恶臭污染作为生活垃圾中转站的主要环境问题,具有成分复杂、影响范围广、持续时间长、健康风险大、较为敏感等特点,是周边居民关注的主要环境焦点。本文以上海某生活垃圾中转站恶臭末端治理工程为例,介绍“干式化学吸附+高效活性炭吸附”主体工艺对干垃圾恶臭及“干式化学吸附+高效沸石分子筛吸附+高效活性炭吸附”主体工艺对湿垃圾恶臭的末端治理效果。本工程运行结果表明:该工艺处理效果显著,处理后气体中的恶臭(异味)污染物排放浓度及排放速率均能完全满足《恶臭(异味)污染物排放标准》(DB 31/1025-2016)[1]中15m高排气筒排放限值要求;周界监控点臭气浓度及恶臭特征污染物浓度完全满足《恶臭(异味)污染物排放标准》(DB 31/1025-2016)[1]中非工业区周界监控点相应浓度限值要求。

Odor pollution, as the main environmental problem of domestic waste transfer stations, is a major environmental focus of residents’ attention due to its complex composition, wide impact range, long duration, high health risk and sensitivity. Taking the odor end treatment project of a domestic waste transfer station in Shanghai as an example, this paper introduces the end treatment effect of the main process of “dry chemical adsorption+efficient activated carbon adsorption” on the odor of dry waste and the main process of “dry chemical adsorption+efficient zeolite molecular sieve adsorption+efficient activated carbon adsorption” on the odor of wet waste. The operation results of the project show that the process has remarkable treatment effect, and the emission concentration and rate of odor(odor) pollutants in the treated gas can fully meet the requirements of the emission limit of 15 m high exhaust funnel in the Emission Standard for Odor(Odor) Pollutants(DB 31/1025-2016)[1];The odor concentration and odor characteristic pollutant concentration at the perimeter monitoring points fully meet the requirements of the corresponding concentration limit at the perimeter monitoring points of non-industrial areas in the Emission Standard for Odor(Odor) Polluta nts(DB 31/1025-2016)[1].