Aquatic aerobic biodegradation of commonly flushed materials in aerobic wastewater treatment plant solids

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Bioresources Pub Date : 2023-12-18 DOI:10.15376/biores.19.1.1150-1164

M. M. Smith, M. Zambrano, Mary A. Ankeny, J. Daystar, Steven Pires, J. Pawlak, R. Venditti

{"title":"Aquatic aerobic biodegradation of commonly flushed materials in aerobic wastewater treatment plant solids","authors":"M. M. Smith, M. Zambrano, Mary A. Ankeny, J. Daystar, Steven Pires, J. Pawlak, R. Venditti","doi":"10.15376/biores.19.1.1150-1164","DOIUrl":null,"url":null,"abstract":"Microfibers and microplastics originating from wastewater treatment plant (WWTP) effluents are significant pollutants in freshwater sources and marine environments. This research investigated the biodegradation of cotton microfibers generated from bleached cotton jersey knit fabric and commercially available flushable wipes, polypropylene-based (PP) nonwoven wipes containing a cellulose component, and tissue paper. Biodegradation was tested in wastewater treatment plants (WWTP) solids, seawater, and lakewater according to the ISO 14852 and ASTM D6691 standard methods in an ECHO respirometer. Degradation experiments continued until a plateau in CO2 emissions was reached, and the final biodegradation extent was calculated relative to the theoretical CO2 produced based on elemental analysis. The results showed that the cotton and other cellulosic materials/components biodegrade to a great extent, as expected for all conditions, whereas the PP did not degrade. In general, for the cellulose polypropylene composite wipes, the cellulose biodegraded readily; the presence of the PP did not hinder the cellulose biodegradation.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"12 8","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresources","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.15376/biores.19.1.1150-1164","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

Abstract

Microfibers and microplastics originating from wastewater treatment plant (WWTP) effluents are significant pollutants in freshwater sources and marine environments. This research investigated the biodegradation of cotton microfibers generated from bleached cotton jersey knit fabric and commercially available flushable wipes, polypropylene-based (PP) nonwoven wipes containing a cellulose component, and tissue paper. Biodegradation was tested in wastewater treatment plants (WWTP) solids, seawater, and lakewater according to the ISO 14852 and ASTM D6691 standard methods in an ECHO respirometer. Degradation experiments continued until a plateau in CO2 emissions was reached, and the final biodegradation extent was calculated relative to the theoretical CO2 produced based on elemental analysis. The results showed that the cotton and other cellulosic materials/components biodegrade to a great extent, as expected for all conditions, whereas the PP did not degrade. In general, for the cellulose polypropylene composite wipes, the cellulose biodegraded readily; the presence of the PP did not hinder the cellulose biodegradation.

查看原文本刊更多论文

好氧污水处理厂固体中常见冲洗物的水生好氧生物降解

源自污水处理厂（WWTP）废水的微纤维和微塑料是淡水水源和海洋环境中的重要污染物。这项研究调查了从漂白棉针织物和市售可冲洗湿巾、含有纤维素成分的聚丙烯基（PP）无纺布湿巾以及纸巾中产生的棉微纤维的生物降解情况。根据 ISO 14852 和 ASTM D6691 标准方法，在 ECHO 呼吸器中对废水处理厂（WWTP）固体、海水和湖水进行了生物降解测试。降解实验一直持续到二氧化碳排放量达到峰值，并根据元素分析计算出相对于理论二氧化碳产生量的最终生物降解程度。结果显示，棉花和其他纤维素材料/成分的生物降解程度很高，符合所有条件下的预期，而聚丙烯则没有降解。一般来说，纤维素聚丙烯复合抹布的纤维素很容易生物降解；聚丙烯的存在并不妨碍纤维素的生物降解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Bioresources 工程技术-材料科学：纸与木材

CiteScore

2.90

自引率

13.30%

发文量

397

审稿时长

2.3 months

期刊介绍： The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.