Separation of microalgae cultivated in anaerobically digested black water using Moringa Oleifera Lam seeds as coagulant

被引：14

作者：

Santos Silva, Debora Fernanda ^{[1
]}

Speranza, Lais Galileu ^{[2
]}

Quartaroli, Larissa ^{[1
]}

Moruzzi, Rodrigo Braga ^{[2
]}

Ribeiro Silva, Gustavo Henrique ^{[1
]}

机构：

[1] Univ Estadual Sao Paulo Julio de Mesquita Filho U, Campus Bauru,Ave Eng Luiz Edmundo C Coube 14-01, BR-17033360 Bauru, SP, Brazil

[2] Univ Estadual Sao Paulo Julio de Mesquita Filho U, Campus Rio Claro,Ave 24 A,1515, BR-13506692 Rio Claro, SP, Brazil

来源：

JOURNAL OF WATER PROCESS ENGINEERING | 2021年 / 39卷

基金：

英国自然环境研究理事会; 巴西圣保罗研究基金会;

关键词：

Wastewater treatment; Coagulation; Moringa oleifera Lam seeds; Fertilizer; Microalgae; WASTE-WATER; NATURAL COAGULANT; BIOMASS; FLOCCULATION; RECOVERY; NUTRIENTS; ALGAE; COAGULATION/FLOCCULATION; SUSTAINABILITY; PHOSPHORUS;

D O I：

10.1016/j.jwpe.2020.101738

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 aim of this work was to evaluate the efficiency of Moringa oleifera Lam (MOL) integral powder as a natural coagulant for the harvesting of microalgae cultivated in anaerobically digested black water (AnBW) and to evaluate the microalgae's characteristics for its application as an organic fertilizer. The use of 475 mg L-1 of MOL as coagulant with 45 min for sedimentation (settling velocity of 0.17 cm min(-1)) at pH value of 7 presented high efficiency in removing turbidity (93 %), optical density (90 %), true color (38 %), total suspended solids (58 %), chemical oxygen demand (53 %), nitrogen (57 %) and phosphorus (60 %). The microalgae biomass harvested from the process has the potential to be applied as fertilizer as presented characteristics (nutrients amount) comparable to other organic fertilizers available on the market.

引用

页数：9

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