A Screening Approach for the Selection of Drinking Water Treatment Residuals for Their Introduction to Marine Systems

Zhou Lang; Wallace Samuel M.; Denslow Nancy D.; Gaillard Jean-Francois; Meyer Peter; Bonzongo Jean-Claude J.

首页> 外文期刊>Environmental toxicology and chemistry >A Screening Approach for the Selection of Drinking Water Treatment Residuals for Their Introduction to Marine Systems

【24h】

A Screening Approach for the Selection of Drinking Water Treatment Residuals for Their Introduction to Marine Systems

机译：一种筛选方法，用于选择饮用水处理残余物，以便他们介绍船舶系统

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Drinking water treatment residuals (DWTRs) produced in large quantities worldwide show strong sorption capacities for several contaminants including metals. These by-products of the water-treatment process are primarily discharged as wastes, to either natural or engineered systems, based on the regulations in place in the country where they are produced. To assess how DWTRs can be repurposed to limit the mobility of metals in aquatic systems, we tested their propensity to release toxic metals and their potential ecotoxicity. To account for the wide variability in their physicochemical characteristics, DWTR samples were obtained from 15 water-treatment plants across the United States. A screening procedure based on a combination of 1) the toxicity characteristics leaching procedure (TCLP), 2) total metal contents and sediment quality guidelines, and 3) acute 10-d Americamysis bahia and chronic 28-d Neanthes arenaceodentata survival and growth bioassays was used. All tested samples were found to be nonhazardous based on TCLP results. However, the concentrations of As, Cu, and Ni exceeded the sediment quality guidelines in some samples, resulting in the exclusion of 7 DWTR samples. All of the DWTRs evaluated for toxicity were nontoxic to the tested organisms. The results of the present study suggest that certain DWTRs can be introduced safely into the marine environment and, therefore, used as potential amendments or capping materials to control the mobility of certain sediment contaminants. Environ Toxicol Chem 2021;00:1-10. (c) 2020 SETAC

机译：全球大量生产的饮用水处理残余物（DWTRS）显示出包括金属在内的几种污染物的强烈吸附能力。这些水处理过程的副产品主要根据生产的法规，作为天然或工程系统的废物排放为废物。为了评估DWTRS如何重新估算，以限制水生系统中金属的流动性，我们测试了释放毒性金属及其潜在的生态毒性的倾向。为了考虑其物理化学特性的广泛变化，DWTR样品是从美国的15个水处理厂获得的。基于1）组合的筛选程序毒性特征浸出程序（TCLP），2）总金属含量和沉积物质量指南，以及3）急性10-D分析巴希亚和慢性28-D Neanthes Arenaceodentata存活和生长生物测量用过的。发现所有测试的样品都是基于TCLP结果的非危害。然而，在一些样品中浓度，Cu和Ni的浓度超过了沉积物质量指导，导致7个DWTR样品排除。评估对毒性的所有DWTR都与测试的生物无毒。本研究结果表明，某些DWTR可以安全地引入海洋环境，因此用作控制某些沉积物污染物的移动性的潜在修正或封盖材料。环境毒素化学2021; 00：1-10。（c）2020 Setac

著录项

来源
《Environmental toxicology and chemistry》 |2021年第4期|1194-1203|共10页
作者
Zhou Lang; Wallace Samuel M.; Denslow Nancy D.; Gaillard Jean-Francois; Meyer Peter; Bonzongo Jean-Claude J.;
展开▼
作者单位

Univ Florida Engn Sch Sustainable Infrastruct & Environm Gainesville FL 32611 USA|Univ Florida Dept Environm Engn Sci Gainesville FL 32611 USA;

Northwestern Univ Dept Civil & Environm Engn Evanston IL USA;

Univ Florida Dept Physiol Sci Gainesville FL 32610 USA|Univ Florida Dept Biochem Gainesville FL USA|Univ Florida Dept Mol Biol Gainesville FL USA|Univ Florida Ctr Environm & Human Toxicol Gainesville FL USA;

Northwestern Univ Dept Civil & Environm Engn Evanston IL USA;

Hydrosphere Res Alachua FL USA;

Univ Florida Engn Sch Sustainable Infrastruct & Environm Gainesville FL 32611 USA|Univ Florida Dept Environm Engn Sci Gainesville FL 32611 USA;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
Drinking water treatment residuals; Metals; Sediments; Sediment quality guidelines; Toxicity; Remediation;

机译：饮用水处理残留物;金属;沉积物;沉积物质量指南;毒性;修复;

A Screening Approach for the Selection of Drinking Water Treatment Residuals for Their Introduction to Marine Systems

摘要

著录项

相关主题

期刊订阅