Removal of toilet paper fibers from residential wastewater: a life cycle assessment

被引：2
作者：
Wang, Xiaoyu [1 ,2 ]
Liu, Guoqiang [3 ]
Sun, Weimin [1 ,2 ,4 ]
Cao, Zhiguo [4 ]
Liu, Huaqing [1 ,2 ]
Xiong, Yiqun [1 ,2 ]
Li, Baoqin [1 ,2 ]
Sun, Xiaoxu [1 ,2 ]
Li, Yongbin [1 ,2 ]
Xu, Rui [1 ,2 ]
Huang, Duanyi [1 ,2 ]
Gao, Pin [1 ,2 ,5 ]
机构：
[1] Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China
[2] Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China
[3] Jinan Univ, Sch Environm, Guangzhou 510632, Peoples R China
[4] Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm &, Minist Educ, Xinxiang 453007, Peoples R China
[5] Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2023年 / 30卷 / 35期
基金：
中国国家自然科学基金;
关键词：
Life-cycle assessment; Toilet paper fibers; Energy analysis; Environmental impacts; Wastewater treatment; CUMULATIVE ENERGY DEMAND; TREATMENT PLANTS; RETENTION TIME; IMPACT; DEGRADATION; CELLULOSE; RECOVERY; MATTER; SCALE; LCA;
D O I：
10.1007/s11356-023-28291-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Toilet paper has been reported as one of the major insoluble pollutant components in the influent of wastewater treatment plants. Toilet paper fibers contribute to a large production of sewage sludge, resulting in a high treatment cost and high energy consumption. To find energy-efficient, cost-effective, and environment-friendly technologies for fiber removal and resource recovery from wastewater, a life-cycle assessment (LCA) was performed to analyze the wastewater treatment processes, including a sieving process for removing and recovering suspended solids before the biodegradation units. Based on the LCA results, it was estimated that the sieve screening process saved 8.57% of energy consumption. The construction phase of sieving consumed 1.31% energy cost compared with the operation phase. Environmental impact analysis showed that sieving reduced the impacts of climate change, human toxicity, fossil depletion, and particulate matter formation, which reduced the total normalized environmental impacts by 9.46%. The life-cycle analysis of the removal of toilet paper fibers from wastewater revealed the need to use more efficient methods to enhance the recovery of cellulose fibers.
引用
收藏
页码：84254 / 84266
页数：13
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