{"title":"用铝盐热化学处理农业工业废水:化学需氧量和颜色的降解","authors":"Omprakash Sahu","doi":"10.1016/j.eaef.2018.12.004","DOIUrl":null,"url":null,"abstract":"<div><p><span>Sugar industry wastewater has the complex characteristic. Wastewater from the sugar industry, if discharged without treatment, poses pollution problems in both aquatic and terrestrial ecosystems. An attempted has been made to treat the sugar industry wastewater in an economical way with a combination of thermal and chemical treatment by aluminium salt. Results showed thermal treatment of sugar industry wastewater were 72% COD and 74% color removal at optimum pH 4.5, working temperature 85 °C, catalyst mass loading 5 kg/m</span><sup>3</sup> and treatment time 9 hrs. The treated wastewater again treated with commercial alum shows 98% COD and 99.9% color removal at pH 6.5 and mass loading 6 mM. The filterability results show combined treated wastewater having 3.64 kg/m<sup>3</sup> cake resistance and 5.26 × 10<sup>−12</sup> medium resistance. Nearly 80% of supernatant settling was achieved at 40 min of settling time. Overall combined treatment was found to be more suitable to treat sugar industry wastewater up to the dischargeable limit.</p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"12 2","pages":"Pages 162-172"},"PeriodicalIF":0.0000,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.12.004","citationCount":"0","resultStr":"{\"title\":\"Thermo-chemical treatment of agro industry effluent by aluminum salt: Degradation of chemical oxygen demand and color\",\"authors\":\"Omprakash Sahu\",\"doi\":\"10.1016/j.eaef.2018.12.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Sugar industry wastewater has the complex characteristic. Wastewater from the sugar industry, if discharged without treatment, poses pollution problems in both aquatic and terrestrial ecosystems. An attempted has been made to treat the sugar industry wastewater in an economical way with a combination of thermal and chemical treatment by aluminium salt. Results showed thermal treatment of sugar industry wastewater were 72% COD and 74% color removal at optimum pH 4.5, working temperature 85 °C, catalyst mass loading 5 kg/m</span><sup>3</sup> and treatment time 9 hrs. The treated wastewater again treated with commercial alum shows 98% COD and 99.9% color removal at pH 6.5 and mass loading 6 mM. The filterability results show combined treated wastewater having 3.64 kg/m<sup>3</sup> cake resistance and 5.26 × 10<sup>−12</sup> medium resistance. Nearly 80% of supernatant settling was achieved at 40 min of settling time. Overall combined treatment was found to be more suitable to treat sugar industry wastewater up to the dischargeable limit.</p></div>\",\"PeriodicalId\":38965,\"journal\":{\"name\":\"Engineering in Agriculture, Environment and Food\",\"volume\":\"12 2\",\"pages\":\"Pages 162-172\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.eaef.2018.12.004\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering in Agriculture, Environment and Food\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1881836616301410\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering in Agriculture, Environment and Food","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1881836616301410","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
Thermo-chemical treatment of agro industry effluent by aluminum salt: Degradation of chemical oxygen demand and color
Sugar industry wastewater has the complex characteristic. Wastewater from the sugar industry, if discharged without treatment, poses pollution problems in both aquatic and terrestrial ecosystems. An attempted has been made to treat the sugar industry wastewater in an economical way with a combination of thermal and chemical treatment by aluminium salt. Results showed thermal treatment of sugar industry wastewater were 72% COD and 74% color removal at optimum pH 4.5, working temperature 85 °C, catalyst mass loading 5 kg/m3 and treatment time 9 hrs. The treated wastewater again treated with commercial alum shows 98% COD and 99.9% color removal at pH 6.5 and mass loading 6 mM. The filterability results show combined treated wastewater having 3.64 kg/m3 cake resistance and 5.26 × 10−12 medium resistance. Nearly 80% of supernatant settling was achieved at 40 min of settling time. Overall combined treatment was found to be more suitable to treat sugar industry wastewater up to the dischargeable limit.
期刊介绍：
Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.
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