Use of combination of coagulation and adsorption process for the landfill leachate treatment from Casablanca city

被引：20

作者：

Chaouki, Zineb ^{[1
]}

Khalil, Fouad ^{[2
]}

Ijjaali, Mustapha ^{[1
]}

Valdes, Hector ^{[3
]}

Rafqah, Salah ^{[4
]}

Sarakha, Mohamed ^{[5
]}

Zaitan, Hicham ^{[1
]}

机构：

[1] Sidi Mohamed Ben Abdellah Univ, Fac Sci & Technol, Lab LCMC, BP 2202, Fes, Morocco

[2] Sidi Mohamed Ben Abdellah Univ, Fac Sci & Technol, Lab LCA, BP 2202, Fes, Morocco

[3] Univ Catolica Santisima Concepcion, Lab Tecnol Limpias, Ingn F, Alonso de Ribera 2850, Concepcion, Chile

[4] Univ Cadi Ayyad, Polydisciplinary Fac, Equipe Chim Analyt & Environm, Safi, Morocco

[5] Univ Blaise Pascal, ICCF, BP 10448, F-63000 Clermont Ferrand, France

来源：

DESALINATION AND WATER TREATMENT | 2017年 / 83卷

关键词：

Coagulation; Flocculation; Adsorption; Jar-Test; Landfill leachate; GRANULAR ACTIVATED CARBON; STABILIZED LEACHATES; SURFACE-CHEMISTRY; WASTE-WATER; REMOVAL; FLOCCULATION; PRETREATMENT; ADSORBENT; KINETICS; POROSITY;

D O I：

10.5004/dwt.2017.20743

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This article presents a combination of coagulation-flocculation and powder activated carbon (PAC) adsorption as a treatment process for landfill leachate. Leachates were collected from a municipal solid waste landfill in Mediouna site, Casablanca city. Ferric chloride (FeCl3) is used here as a coagulant to study the optimum conditions for the removal of chemical oxygen demand (COD), colour, total suspended solids (TSS) and turbidity in jar tests. This coagulant showed the highest removal efficiency in terms of COD (62.5%), turbidity (92.5%), colour (80%) and least sludge volume generation (30% v/v) for an optimum coagulant dose of 12 g Fe3+ L-1. Combining coagulation with adsorption process onto PAC enhances the removal of COD, turbidity and colour reduction by a 77%, a 99% and a 99.7%, respectively. These results show that coagulation-adsorption could be used as a promising hybrid process for the treatment of landfill leachates.

引用

页码：262 / 271

页数：10

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