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ผลงานตีพิมพ์ในวารสารวิชาการEffect of Root Ages on the Quality of Low Cyanide Cassava Flour from Kasetsart 50ผู้แต่ง: Sunee Chotineeranat,  Dr.Thongchai Suwonsichon, Associate Professor , Dr.Penkwan Chompreeda, Associate Professor , Kuakoon Piyachomkwan, Dr.Vichan Vichukit, Associate Professor , Dr.Klanarong Sriroth, Associate Professor , Mr.Vichai Haruthaithanasan, Associate Professor , วารสาร: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Cyanide Removal from Laboratory Wastewater Using Sodium Hypochlorite and Calcium Hypochlorite) ผู้เขียน:ดร.นุษรา สินบัวทอง , Bussarin Kongseri, Panadda Plungklang, Roj Khun-anake สื่อสิ่งพิมพ์:pdf AbstractRemoval of cyanide (CN-) from laboratory wastewater using sodium hypochlorite (NaOCl) and calcium hypochlorite (Ca(OCl)2) were performed at the reaction time of 30 minutes. The product of chlorination at an alkaline pH of 12.3 was CNO - which could be oxidized further to N2. Colorimetric method was used to determine the amount of CN- before and after chemical treatments. The optimum doses of chemicals used were determined. It was found that 100% removal of this contaminant could be achieved. The optimum doses and chemical costs of NaOCl and Ca(OCl)2 varied depending on the initial cyanide concentration. The optimum doses of NaOCl and Ca(OCl) 2 for 100% CN- removal were Y = 17.3X and Y = 3.32 X, respectively (where X = initial CN- concentration in mg/l, and Y = chemical dose in mg/l). The chemical costs of NaOCl and Ca(OCl) 2 were Y = 0.69 X and Y = 0.50X, respectively (where X = initial CN- concentration in mg/l, and Y = cost, baht/m3 of wastewater). Ca(OCl)2 is more effective than NaOCl considering the cost and dosage used. |
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