废弃HEPA滤网对水环境影响的实验研究  

作　　者：赵志成 彭三曦 单慧媚 赵艳莲 

机构地区：[1]桂林理工大学广西环境污染控制理论与技术重点实验室,广西桂林541004 [2]桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林541004 [3]桂林理工大学地球科学学院,广西桂林541004

出　　处：《科技创新与应用》2022年第7期101-103,共3页Technology Innovation and Application

基　　金：广西科技基地和人才专项(桂科AD19110024,桂科AD19110062);桂林理工大学一流本科课程培育项目(xsxx202013);桂林理工大学本科教改工程项目(2020B05)资助。

摘　　要：以常用的高效空气微粒过滤(High Efficiency Particulate Air filter,HEPA)材料为研究对象,设计室内实验,利用纯水、地下水和雨水溶液对其进行浸泡,分析未使用的和废弃的滤网在不同水化学溶液中阴离子的释放/吸附规律,查明其对水环境的潜在影响。研究发现,单位质量的废弃滤网在不同溶液中阴离子的最大平均释放量(Q_(max))排序为:SO_(4)^(2-)>NO_(3)^(-)>Cl^(-)>F^(-);其中,纯水中Cl^(-)和NO_(3)^(-)的Q_(max)最高,分别为1.2120和0.3387 mg/g,地下水中SO_(4)^(2-)和F^(-)的Q_(max)最高,分别为6.7329和0.0348 mg/g,表明SO_(4)^(2-)是废弃滤网对水环境的主要阴离子污染成分,且地下水和纯水环境更容易受到废弃滤网释放阴离子的污染影响。Taking the commonly used high efficiency particulate air filter(HEPA)materials as the research object,indoor experiments were designed and soaked in pure water,groundwater and rain water solution,to analyze the release/adsorption of anions from unused and discarded filters in different hydrochemical solutions,and to find out their potential effects on the water environment.It is found that the maximum average release of anions per unit mass of waste filter in different solutions is in the following order:SO_(4)^(2-)>NO_(3)^(-)>Cl^(-)>F^(-).Among them,Cl^(-)and NO_(3)^(-)in pure water are the highest,1.2120 and 0.3387 mg/g respectively,and SO_(4)^(2-)and F^(-)in groundwater are the highest,6.7329 and 0.0348 mg/g,respectively,indicating that SO_(4)^(2-)is the main anion pollution component of abandoned filter to water environment,and groundwater and pure water environment are more easily affected by the release of anions from abandoned filter.

关 键 词：废弃HEPA滤网材料 水环境 阴离子 

分 类 号：X52[环境科学与工程—环境工程]