Investigation on removal of malachite green using EM based compost as adsorbent

Highly effective removal of malachite green from aqueous solution by hydrochar derived from phycocyanin-extracted algal bloom residues through hydrothermal carbonization

“…3 It has been reported that MG discharged into receiving water bodies even at low concentrations can affect the aquatic life and cause detrimental effects in liver, gill, kidney, intestine and gonads. 4 Therefore, nowadays MG is not allowed to be applied in aquaculture in many countries including the United States, China, Canada, and the European Union, 5 and the environmental quality standard limit of concentration of MG in water is set in the range of 0.5-100 mg L À1 . 6 To remove dyes in dye-contaminated wastewater with high concentration, the conventional methods are employed which include aerobic and anaerobic microbial remediation, chemical coagulation, reverse osmosis, oxidation, ion exchange, membrane ltration and electrochemical approaches.…”

Sandpaper Wastes as Adsorbent for the Removal of Brilliant Green and Malachite Green Dye

“…Besides, several adsorption peaks that emerged in the range of 1550-1380 cm -1 might be ascribed to the N-C groups after BG adsorption on SW500. 13,14,[21][22][23][24][25][26] The chemical compositions of SW500 and SW800 were determined by X-ray fluorimeter. It was found that SW500 contained 1.43% Al 2 O 3 , 0.31% SiO 2 , 0.72% P 2 O 5 , 0.16% SO 3 , 12.47% CaO, 0.68% TiO 2, 0.74% Fe 2 O 3 , 0.03% CuO, 0.24% ZnO, 0.03% SrO and 0.05% ZrO 2 , while SW800 contained 3.6% Al 2 O 3 , 0.97% SiO 2 , 0.67% P 2 O 5 , 0.16% SO 3 , 44.06% CaO, 1.27% TiO 2, 1.99% Fe 2 O 3 , 0.01% CuO, 0.03% ZnO, 0.08% SrO and 0.09% ZrO 2 .…”

“…Numerous inexpensive and abundant biosorbents especially agro waste materials, as well as industrial and municipal wastes, have been proposed by several researchers for the removal of malachite green and brilliant green dyes from aqueous solution. 13 The usage of waste as an adsorbent helps to reduce environmental pollution by recycling. In the literature some of the low-cost adsorbents used for dye removal were NaOH treated saw dust, 14 waste rubber tire, 15 white rice husk ash, 16 Neem leaf powder, 17 kaolin, 2 peach stone, 18 and medical cotton waste 19 etc.…”

Transport of reactive X‐3B dye at the interface between cationic surfactant‐modified water‐quenched blast furnace slag and aqueous solution

“…Water pollution caused by dyes has received great attention due to their worldwide application in textile, paper, printing, food, ink, plastics, acrylic, leather, pharmaceutical, cosmetics, and other industries . More than 100 000 types of dyes are commercially available and about 7 × 10 5 tonnes of dyeing materials are used annually around the world . It is estimated that 10–15 % of used dyes are discarded into the environment without sufficient treatment .…”

“…[1] More than 100 000 types of dyes are commercially available and about 7 Â 10 5 tonnes of dyeing materials are used annually around the world. [2] It is estimated that 10-15 % of used dyes are discarded into the environment without sufficient treatment. [3] The dyes from effluents can absorb light, reduce the light penetration ability, and disturb photosynthesis and natural self-purification, posing adverse effects on aquatic biota.…”