Physical and biological removal of Microcystin-LR and other water contaminants in a biofilter using Manganese Dioxide coated sand and Graphene sand composites

Removal of synthetic dyes from wastewater generated by the textile industries is important. Rhodamine-B is widely used colorant and is medically proven to lead to tissue borne sarcoma, reproductive and neurotoxicity issues in humans, if still present in the treated drinking water. Herein, this dataset provides information on different forms of sand materials for their effective utilization as an adsorbent material for Rhodamine-B. The effectiveness of the media was measured in terms of breakthrough time obtained. One of the 27 presented data set is a part of a research article [1] explaining the breakthrough time of these filter media under specific experimental condition. All these data is a combination of three variables that were studied: a) concentration of Rhodamine-B (1 mg/L, 5 mg/L and 10 mg/L), b) flow velocity of Rhodamine-B spiked water (2 mL/min, 5 mL/min and 10 mL/min) and c) bed height (7.5 cm, 10 cm, and 12.5 cm). At any bed height, the breakthrough time of graphitized sand (brewery sugar coated, GS1) was found to be 3–4 times higher than the second best adsorbent, i.e., manganese dioxide coated on GS1.

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“…The kinetics data of these adsorbents in relation to the metal adsorption has been mentioned in Kumar et al. (2020) [1].…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…Physical and biological removal of Microcystin-LR and other water contaminants in a biofilter using Manganese Dioxide coated sand and Graphene sand composites. Science of The Total Environment, 703. doi: https://doi.org/10.1016/j.scitotenv.2019.135052 [1].…”

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confidence: 99%

Dataset of breakthrough time for various modified sand materials using Rhodamine-B as an adsorbate

et al. 2019

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“…Filters consisted of sand/graphitized sand (GS) media (depending on FM1/FM2) 22 cm in height followed by the drainage section (particles size >2 mm and <5 mm). Graphitized sand was synthesized using brewery effluent liquid containing sugar as detailed in our previous study (Kumar et al 2020b). The effective diameter of the filter grain in filters was around 0.26 mm with a coefficient of uniformity <2.4.…”

Section: Dwtp Model Sap-1© Set-upmentioning

confidence: 99%

“…J o u r n a l P r e -p r o o f 4 A promising result from our previous study (Kumar et al 2020b), obtained at the bench-scale using graphitized-sand adsorbent for various water pollutants including MC-LR (> 90% removal) prompted the team to further check the adsorbent feasibility at a higher scale (from 110-gram GS1 adsorbent to ̴ 1700 gram). The graphitization of sand was performed using a sustainable sugar solution in the form of brewery waste effluent.…”

Section: Introductionmentioning

confidence: 99%

A low-cost graphitized sand filter to deliver MC-LR-free potable water: Water treatment plants and household perspective

Kumar

Cledón

Brar

2020

Science of The Total Environment

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“…Conventional water treatment processes are not effective in removing cyanotoxins in water because of the high energy and chemical dosage required (Abbas et al, 2020), while the usage of common adsorbents can be challenging because of the competitive adsorption related to the presence of natural organic matter in the source water (Kumar et al, 2020). Therefore, natural filtration represents a valuable alternative.…”

Section: Introductionmentioning

confidence: 99%

Ability of bank filtration to remove cyanotoxins under different levels of nutrients

Walkenhorst

Biswas

Ray

et al. 2021

Water & Environment J

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Harmful algal blooms represent a major environmental problem that is rapidly growing all over the world. In the present work, the effectiveness of simulated bank filtration (BF), as an economical water treatment option, to remove cyanotoxins under different levels of nutrients (nitrates and phosphates) was investigated. Vertical flow‐through columns pre‐acclimated with two levels of nutrients (e.g., nitrate and phosphate—10 vs. 50 mg/L) were exposed to two different levels of cyanotoxins (10 vs. 75 µg/L). Results from our study confirmed the ability of simulated BF to remove cyanotoxins. High cyanotoxins removals (>70%) were achieved regardless of the levels of nutrients and cyanotoxins. It can be recommended to guarantee enough travel time (>7 d) to enhance the removal of cyanotoxins. Among the removal mechanisms, biodegradation was the predominant removal mechanism.

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Physical and biological removal of Microcystin-LR and other water contaminants in a biofilter using Manganese Dioxide coated sand and Graphene sand composites

Cited by 28 publications

References 50 publications

Dataset of breakthrough time for various modified sand materials using Rhodamine-B as an adsorbate

Dataset of breakthrough time for various modified sand materials using Rhodamine-B as an adsorbate

A low-cost graphitized sand filter to deliver MC-LR-free potable water: Water treatment plants and household perspective

Ability of bank filtration to remove cyanotoxins under different levels of nutrients

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