教師資料查詢 | 類別: 期刊論文 | 教師: 王三郎 WANG SAN-LANG (瀏覽個人網頁)

標題:Coagulation of chitin production wastewater from shrimp scraps with by-product chitosan and chemical coagulants
學年108
學期2
出版(發表)日期2020/03/06
作品名稱Coagulation of chitin production wastewater from shrimp scraps with by-product chitosan and chemical coagulants
作品名稱(其他語言)
著者Nguyen Van Nhi Tran; Qiming Jimmy Yu; Tan Phong Nguyen; San‐Lang Wang
單位
出版者
著錄名稱、卷期、頁數Polymers 12(3), 607
摘要Chitin production wastewater contains nutrient-rich organic and mineral contents. Coagulation of the wastewater with a natural coagulant such as by-product chitosan would be an economical and environmentally friendly method of treatment. This study investigated the treatment efficiencies of a preliminary sedimentation process followed by coagulation. The removal efficiencies for wastewater parameters were evaluated and compared for coagulants including by-product chitosan, polyaluminum chloride, and polyacryamide. The evaluation was based on the removal of wastewater turbidity and other criteria, including tCOD, sCOD, TKN, NH4+–N, TP, TSS, calcium, and crude protein. The results showed that the preliminary sedimentation (before coagulation) can remove over 80% of turbidity and more than 93% of TSS at pH 4 in 30 min. At optimal conditions, when the ratio of crude protein and calcium was 4.95, by-product chitosan dose of 77.5 mg·L−1 and pH = 8.3, the wastewater characteristics changes were tCOD 23%, sCOD 32%, TKN and ammonium 25%, TP 90%, TSS 84%, Ca2+ 29%, and crude protein 25%. The residue recovered through coagulation consists of up to 55 mg·g−1 crude protein, which is used for animal feed or crop fertilizer.
關鍵字high strength wastewater treatment;turbidity removal;chitin and chitosan;chemical coagulation;crude protein recovery
語言英文
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者WANG San-Lang
審稿制度
國別瑞士
公開徵稿
出版型式,電子版
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