Phytoremediation of Domestic Sewage in Constructed Wetland Integrated with Cultivation of Chlorella sp.: A Novel Technique for Remediation and Resource Recovery

IF 0.4 Q4 ENVIRONMENTAL SCIENCES

Asian Journal of Water, Environment and Pollution Pub Date : 2023-05-25 DOI:10.3233/ajw230042

A. Giri, Vishal Kumar, Kiran, Vijay Vyas, Ashok Kumar, Dinesh Gautam

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引用次数: 0

Abstract

Domestic sewage-based constructed wetland (CW) showed that the effluent from CW-system contain enough plant nutrients and enhanced the growth of microalgae. Hence, a pilot CW system employing Typha latifolia in domestic sewage, integrated with the cultivation wild type Chlorella sp. was investigated. Phytoremediation at 48 hours of detention time caused significant changes in its physicochemical properties and the generated effluent was notably attractive for the cultivation of microalgae. The microalga was grown in 6 treatments: treated-mixotrophic (T1), treated-heterotrophic (T2), treated-autotrophic (T3), control-mixotrophic (T4), control-heterotrophic (T5) and control-autotrophic (T6) conditions for 8 days inside an incubator. The results suggested that phytoremediation effluents integrated with mixotrophic cultivation of microalgae, utilising both light and carbon sources could be the most efficient, environmentally safe, sustainable and novel technique for synergistic resource generation and bioremediation.

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人工湿地与小球藻培养相结合的生活污水植物修复：一种新的修复和资源回收技术

基于生活污水的人工湿地（CW）表明，CW系统的出水含有足够的植物营养物质，并促进了微藻的生长。为此，研究了在生活污水中采用宽叶香蒲和栽培野生型小球藻相结合的CW中试系统。滞留48小时的植物修复使其理化性质发生了显著变化，产生的废水对微藻的培养具有显著的吸引力。在培养箱中，微藻在6个处理中生长8天：处理混合营养（T1）、处理异养（T2）、处理自养（T3）、对照混合营养（T4）、对照异养（T5）和对照自养（T6）条件。结果表明，利用光和碳源，将植物修复废水与微藻的混合营养培养相结合，可能是协同资源生成和生物修复的最有效、环境安全、可持续和新技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Asian Journal of Water, Environment and Pollution ENVIRONMENTAL SCIENCES-

CiteScore

1.00

自引率

20.00%

发文量

期刊介绍： Asia, as a whole region, faces severe stress on water availability, primarily due to high population density. Many regions of the continent face severe problems of water pollution on local as well as regional scale and these have to be tackled with a pan-Asian approach. However, the available literature on the subject is generally based on research done in Europe and North America. Therefore, there is an urgent and strong need for an Asian journal with its focus on the region and wherein the region specific problems are addressed in an intelligent manner. In Asia, besides water, there are several other issues related to environment, such as; global warming and its impact; intense land/use and shifting pattern of agriculture; issues related to fertilizer applications and pesticide residues in soil and water; and solid and liquid waste management particularly in industrial and urban areas. Asia is also a region with intense mining activities whereby serious environmental problems related to land/use, loss of top soil, water pollution and acid mine drainage are faced by various communities. Essentially, Asians are confronted with environmental problems on many fronts. Many pressing issues in the region interlink various aspects of environmental problems faced by population in this densely habited region in the world. Pollution is one such serious issue for many countries since there are many transnational water bodies that spread the pollutants across the entire region. Water, environment and pollution together constitute a three axial problem that all concerned people in the region would like to focus on.