Nikhil Dilip Pawar , Steve Harris , Krzysztof Mitko , Gijsbert Korevaar
{"title":"煤矿废水的资源化——挑战与经济机遇","authors":"Nikhil Dilip Pawar , Steve Harris , Krzysztof Mitko , Gijsbert Korevaar","doi":"10.1016/j.wri.2022.100179","DOIUrl":null,"url":null,"abstract":"<div><p>Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering valuable minerals and clean water. In this study, we modeled a novel treatment process, which includes nanofiltration (NF), two-step crystallization, reverse osmosis (RO), electrodialysis (ED), multi-effect distillation (MED), and a NaCl crystallizer, and performed a techno-economic analysis of its full-scale implementation, using a circular economy approach. We estimated the thermal and electrical energy consumption to be 745.5 kWh<sub>th</sub>/ton<sub>NaCl</sub> and 565.1 kWh<sub>el</sub>/ton<sub>NaCl</sub> (or 13.6 kWh<sub>th</sub> and 10.3 kWh<sub>el</sub> per m<sup>3</sup> of feed effluent), respectively. The levelized cost of the NaCl salt that accounts for the revenue from the plant's co-products (Mg(OH)<sub>2</sub>, CaSO<sub>4</sub> and, pure water) was estimated to be 203 USD/ton<sub>NaCl</sub>. The economic viability of the treatment chain can be improved by using renewable electricity sources, reducing the total expenditure on NF and RO, and integrating alternate technologies into the treatment plant.</p></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"28 ","pages":"Article 100179"},"PeriodicalIF":4.5000,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212371722000099/pdfft?md5=4ed7bbda0310030a290a577f1e37cf35&pid=1-s2.0-S2212371722000099-main.pdf","citationCount":"2","resultStr":"{\"title\":\"Valorization of coal mine effluents — Challenges and economic opportunities\",\"authors\":\"Nikhil Dilip Pawar , Steve Harris , Krzysztof Mitko , Gijsbert Korevaar\",\"doi\":\"10.1016/j.wri.2022.100179\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering valuable minerals and clean water. In this study, we modeled a novel treatment process, which includes nanofiltration (NF), two-step crystallization, reverse osmosis (RO), electrodialysis (ED), multi-effect distillation (MED), and a NaCl crystallizer, and performed a techno-economic analysis of its full-scale implementation, using a circular economy approach. We estimated the thermal and electrical energy consumption to be 745.5 kWh<sub>th</sub>/ton<sub>NaCl</sub> and 565.1 kWh<sub>el</sub>/ton<sub>NaCl</sub> (or 13.6 kWh<sub>th</sub> and 10.3 kWh<sub>el</sub> per m<sup>3</sup> of feed effluent), respectively. The levelized cost of the NaCl salt that accounts for the revenue from the plant's co-products (Mg(OH)<sub>2</sub>, CaSO<sub>4</sub> and, pure water) was estimated to be 203 USD/ton<sub>NaCl</sub>. The economic viability of the treatment chain can be improved by using renewable electricity sources, reducing the total expenditure on NF and RO, and integrating alternate technologies into the treatment plant.</p></div>\",\"PeriodicalId\":23714,\"journal\":{\"name\":\"Water Resources and Industry\",\"volume\":\"28 \",\"pages\":\"Article 100179\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2022-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2212371722000099/pdfft?md5=4ed7bbda0310030a290a577f1e37cf35&pid=1-s2.0-S2212371722000099-main.pdf\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water Resources and Industry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2212371722000099\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"WATER RESOURCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Resources and Industry","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212371722000099","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"WATER RESOURCES","Score":null,"Total":0}
Valorization of coal mine effluents — Challenges and economic opportunities
Coal-mine effluent treatment has the potential to both reduce the environmental impact of the effluent and provide economic opportunities by recovering valuable minerals and clean water. In this study, we modeled a novel treatment process, which includes nanofiltration (NF), two-step crystallization, reverse osmosis (RO), electrodialysis (ED), multi-effect distillation (MED), and a NaCl crystallizer, and performed a techno-economic analysis of its full-scale implementation, using a circular economy approach. We estimated the thermal and electrical energy consumption to be 745.5 kWhth/tonNaCl and 565.1 kWhel/tonNaCl (or 13.6 kWhth and 10.3 kWhel per m3 of feed effluent), respectively. The levelized cost of the NaCl salt that accounts for the revenue from the plant's co-products (Mg(OH)2, CaSO4 and, pure water) was estimated to be 203 USD/tonNaCl. The economic viability of the treatment chain can be improved by using renewable electricity sources, reducing the total expenditure on NF and RO, and integrating alternate technologies into the treatment plant.
期刊介绍：
Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry
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