OPTIMIZATION OF COAGULATION PARAMETERS IN THE REMOVAL OF TURBIDITY AND SUSPENDED SOLIDS FROM TANNERY EFFLUENTS USING THE BOX - BEHNKEN DESIGN

被引:0
|
作者
Bobadilla, Jorge L. Mendoza [1 ]
Perez, Guillermo A. Garcia [1 ]
Vasquez, Wilson A. Maco [1 ]
Escobedo, Adolfo E. Guerrero [1 ]
Rojas, Jorge F. Vergara [1 ]
Carranza, Wilber A. Loyola [1 ]
Espinoza, Ronald F. Rodriguez [2 ]
机构
[1] Univ Nacl Trujillo, Trujillo, Peru
[2] Univ Autonoma Peru, Lima, Peru
来源
关键词
Box-Behnken; Coagulation; Optimization; Suspended solids; Turbidity; FLOCCULATION; WATER;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The present study evaluated the performance of tannery effluent treatments by coagulation processes. This was done by combining each of the organic coagulants L-1544, L-1541, and L-1700 with aluminium sulphate, respectively, as an inorganic coagulant in different mixing ratios. Subsequently, the response surface method optimized the coagulation conditions: agitation speed, time, and total coagulant concentration. The best results were obtained with the cationic coagulant based on L-1544; likewise, by superposition of contours plots, the conditions that maximize the percentages of simultaneous removal of turbidity and suspended solids were determined, the optimum coagulation values being time 4 minutes, agitation speed 169.7 rpm and total coagulant concentration 1354 ppm, obtaining 100 and 61.9 % removal of turbidity and suspended solids respectively. The R-Squared statistics show that the models explain 92.99 % and 93.94 % of the variabilities in turbidity and Suspended Solids Removal, respectively.
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页码:2045 / 2056
页数:12
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