Wastewater treatment nexus: Carbon nanomaterials towards potential aquatic ecotoxicity

New techniques and materials are called for wastewater treatment due to the shortage of worldwide fresh water and the increasing water demand. As a simple and efficient method, adsorption technique has been extensively applied to remove organic and inorganic pollutants from contaminated water. The application of carbon nanomaterials, such as activated carbon, carbon nanotubes (CNTs), graphenes and their derivatives/analogues, in wastewater treatment has also been investigated due to their unique properties, such as wide availability, porous structure, large surface area, tunable morphology and nontoxicity. This review highlights the recent advances of wastewater treatment utilizing carbon nanomaterial modified composites as adsorbents. The adsorption phenomenon and its mechanism are briefly discussed. Detailed discussions are focused on the selective adsorption of carbon nanomaterial composites to unique pollutants. The remaining challenges are also mentioned.

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AN OVERVIEW OF CARBON NANOMATERIALS FOR WASTEWATER TREATMENT

International Journal of Biology Pharmacy and Allied Sciences ◽

10.31032/ijbpas/2021/10.11.1031 ◽

2021 ◽

Vol 10 (11 (SPECIAL ISSUE)) ◽

Keyword(s):

Wastewater Treatment ◽

Carbon Nanomaterials

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Economic and Environmental Assessment of Pulp and Paper Industrial Wastewater Treatment

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.90-93.2929 ◽

2011 ◽

Vol 90-93 ◽

pp. 2929-2932 ◽

Cited By ~ 1

Author(s):

Jing Min Hong ◽

Zainab. Z Ismail ◽

Jing Lan Hong

Keyword(s):

Wastewater Treatment ◽

Environmental Impact ◽

Environmental Assessment ◽

Industrial Wastewater ◽

Photochemical Oxidation ◽

Aquatic Ecotoxicity ◽

Terrestrial Ecotoxicity ◽

The Impact ◽

Pulp Production ◽

Abiotic Depletion

A cost combined life cycle environmental assessment was carried out to estimate the economic and environmental impact of wastewater treatment in the pulp production site of China. Results showed that the impact seen from abiotic depletion, acidification, eutrophication, global warming, fresh water aquatic ecotoxicity, and marine aquatic ecotoxicity categories represented an important contribution to the overall environmental impact, while the impact seen from human toxicity, terrestrial ecotoxicity, and photochemical oxidation categories played relatively small role. Specifically, the machine, electricity, coagulant production processes had the highest contribution to the overall environmental and economic impact. Improving electricity and chemicals applications efficiency are the efficient way to minimize overall environmental and economic impacts.

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