Coagulation/Flocculation with Moringa oleifera and Membrane Filtration for Dairy Wastewater Treatment

被引：33
作者：
Mateus, G. A. P. [1 ]
Formentini-Schmitt, D. M. [2 ]
Nishi, L. [3 ]
Fagundes-Klen, M. R. [2 ]
Gomes, R. G. [4 ]
Bergamasco, R. [3 ]
机构：
[1] Univ Estadual Maringa, Dept Biotechnol Geneth & Cell Biol, Av Colombo 5790, BR-87020900 Maringa, Parana, Brazil
[2] West Parana State Univ Toledo, Dept Chem Engn, Rua Fac 645 Jd, BR-85903000 Toledo, Parana, Brazil
[3] Univ Estadual Maringa, Dept Chem Engn, Av Colombo 5790, BR-87020900 Maringa, Parana, Brazil
[4] Univ Estadual Maringa, Dept Food Engn, Av Colombo 5790, BR-87020900 Maringa, Parana, Brazil
来源：
WATER AIR AND SOIL POLLUTION | 2017年 / 228卷 / 09期
关键词：
Dairy wastewater; Moringa oleifera; Microfiltration; Nanofiltration; Coagulation/flocculation; MICROFILTRATION MEMBRANES; NATURAL COAGULANT; FLOCCULATION PROCESS; SURFACE-WATER; REMOVAL; NANOFILTRATION; ULTRAFILTRATION; BIOREACTOR; EFFLUENT; SEEDS;
D O I：
10.1007/s11270-017-3509-z
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The main objective of the present paper is to evaluate the use of Moringa oleifera (MO) as a natural coagulant in coagulation/flocculation/sedimentation (CFS) followed by the microfiltration (MF) or nanofiltration (NF) process in dairy wastewater treatment, focusing on determining the best association of treatments that can generate wastewater for reuse purposes. The association of CFS-MF-NF treatments showed a high removal efficiency for chemical oxygen demand (COD) (mean of 96%), turbidity, and color (mean of 99%) meeting water reuse standards, allowing the reutilization of the wastewater, in relation to the analyzed parameters. The results indicate a lower membrane fouling rate (63%), an increase in permeate flow, and better quality of the permeate, proving that the CFS-MF-NF treatment is the most suitable among all the tested treatments. Finally, the treated wastewater obtained with this process presents better quality than the wastewater obtained with the conventional treatments.
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页数：13
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