棉浆粕化纤企业H_2S和CS_2排放特征及影响分析

EMISSION CHARACTERISTICS AND IMPACT ANALYSIS OF H_2S AND CS_2 IN COTTON-PULP CHEMICAL-FIBER ENTERPRISES

为研究棉浆粕化纤企业H_2S和CS_2排放特征及区域环境影响。选择玛纳斯县某化纤企业为研究对象,对企业有组织、无组织、厂界及周边敏感点的污染水平进行定量评价,采用相关性分析影响区域环境的主要因素。研究表明,棉浆粕化纤企业H_2S和CS_2排放特征为:有组织排放>无组织排放。在无组织排放源中,污水站H_2S和CS_2检出浓度最高,其最小检出浓度分别在原液车间和硫氢化钠制片车间。厂界及敏感点污染物浓度均不超标。污水站和原液车间无组织排放是影响厂界的主要因素(P<0.01),无组织排放是敏感点的主要污染源(P<0.05),表明无组织排放对区域环境影响显著,亟需重点管控。

In order to study the emission characteristics of H2S and CS2 and their impacts on environment in cotton-pulp chemical-fiber enterprises, a chemical-fiber enterprise in Manas County was taken as the research object. The pollution level of H2S and CS2 concentrations by organized and unorganized emission, and those on factory boundary as well as sensitive sampling sites of the enterprise were quantitatively assessed, then correlation analysis was adopted to determine the main influence factors on the regional environment. Research showed that the emission characteristics of H2S and CS2 in cotton-pulp chemical-fiber enterprise were: organized emissions>unorganized emissions. According to unorganized emission sources, H2S and CS2 concentrations were highest at the sewage plant, and lowest at the stock-solution workshop and the sodium thiohydride production workshop, respectively. The pollutant concentration was not beyond the standard at both the factory boundary and the sensitive sampling sites. Unorganized emission from the sewage plant and the stock-solution workshop was the main influence factor on the factory boundary(P<0.01), and unorganized emission was the major pollution source affecting the sensitive sampling sites(P<0.05), which indicated that unorganized emissions had a significant impact on regional environment, and required urgent monitoring and controlling.