{"id":16448,"date":"2024-09-03T20:23:13","date_gmt":"2024-09-03T14:53:13","guid":{"rendered":"https:\/\/matribhumisamachar.com\/en\/?p=16448"},"modified":"2024-09-03T20:23:13","modified_gmt":"2024-09-03T14:53:13","slug":"removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment","status":"publish","type":"post","link":"https:\/\/matribhumisamachar.com\/en\/2024\/09\/03\/removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment\/","title":{"rendered":"Removing toxic chromium using sunlight can lower cost of waste water treatment"},"content":{"rendered":"<p style=\"text-align: justify;\">A low-cost method has been developed by INST researchers to remove toxic Chromium from wastewater of industries such as leather tanning and electroplating by using \u201csunlight\u201d as catalyst in combination with microfluidic technology.<\/p>\n<p style=\"text-align: justify;\">Toxicity of hexavalent chromium is a serious concern and as per reports by WHO\u00a0the tolerable concentrations of hexavalent and trivalent chromium in drinking water are limited to 0.05 mg\/L and 5 mg\/L. Thus, it becomes imperative to reduce this hexavalent form of chromium to the trivalent form.<\/p>\n<p style=\"text-align: justify;\">Several chemical and physiochemical methods, such as ion exchange, adsorption, and bacterial and chemical reduction, have been employed for the removal of Cr(VI). Most of these techniques are costly, with low removal efficiencies of Cr(VI).<\/p>\n<p style=\"text-align: justify;\">Dr. Bhanu Prakash\u2019s research group from Institute of Nano Science and Technology (INST), Mohali, an autonomous institute of Department of Science and Technology has developed a new technique of removing toxic Cr(VI) ions by utilizing sunlight for the catalytic process in combination with microfluidic technology for the conversion of the toxic hexavalent form of chromium to a less toxic trivalent form. They used a process called\u00a0<em>continuous flow photoreduction<\/em>\u00a0and validated this process in wastewater using TiO<sub>2<\/sub>\u00a0nanoparticles with the help of<em>\u00a0<\/em>a smartphone based colorimetric technique.<\/p>\n<p style=\"text-align: justify;\">Besides, the cost effectiveness of the process and the usage of renewable energy, with the microfluidics route, the reduction efficiency can also be tailored by fine-tuning the flow rate of the organic pollutant, reactor dimension, and architecture, precisely. One of the most advantageous features of using microreactors is the reusability of the photocatalyst without any recovery agents or cumbersome processes.<\/p>\n<p style=\"text-align: justify;\">Various microfluidic parameters such as reactor design, flow rate and channel length along with different catalyst phases were fine-tuned to bring about superior degradation efficiency. A superior degradation efficiency of 95 % was attained by utilizing a serpentine microreactor coated with a photocatalyst in the pure anatase phase at a flowrate of 50 \u00b5l\/min.<\/p>\n<p style=\"text-align: justify;\">The researchers started the process with the fabrication of microfluidic reactors and the synthesis of nanocatalysts. Next, the nanocatalyst was immobilized onto the microreactor bed and flow experiments were performed. The extent of conversion was monitored using a change in absorbance via UV-Vis spectroscopy. This was followed by evaluating the reactor performance on basics of long-term stability of microreactor and photocatalyst with respect to the number of cycles or volume processed.<\/p>\n<p style=\"text-align: justify;\">This work published in Chemical Engineering Journal holds potential in industrial translation by increasing the throughput of the approach. This is possible by setting up microfluidic reactors in a parallel approach (arrays) or by microtexturing of the bulk reactor surface to increase the efficacy of the process after repetitive use.<\/p>\n<p style=\"text-align: justify;\">\n<p style=\"text-align: justify;\"><img decoding=\"async\" src=\"https:\/\/static.pib.gov.in\/WriteReadData\/userfiles\/image\/image001JHN1.jpg\" \/><\/p>\n<p style=\"text-align: justify;\">\n<p style=\"text-align: justify;\"><img decoding=\"async\" src=\"https:\/\/static.pib.gov.in\/WriteReadData\/userfiles\/image\/image0020091.png\" \/><\/p>\n<p style=\"text-align: justify;\"><em>Optical image of the microreactors fabricated using laser micromachining technique with a.) Serpentine (\u03bcR-S), b.) branched (\u03bcR-B) and c.) micropillars (\u03bcR-M) based architectures.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A low-cost method has been developed by INST researchers to remove toxic Chromium from wastewater of industries such as leather tanning and electroplating by using \u201csunlight\u201d as catalyst in combination with microfluidic technology. Toxicity of hexavalent chromium is a serious concern and as per reports by WHO\u00a0the tolerable concentrations of hexavalent and trivalent chromium in &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[136],"tags":[12080,12081,12082],"class_list":["post-16448","post","type-post","status-publish","format-standard","","category-national","tag-chromium-pollution","tag-photocatalytic-treatment","tag-solar-powered-water-treatment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Removing toxic chromium using sunlight can lower cost of waste water treatment - Matribhumi Samachar English<\/title>\n<meta name=\"description\" content=\"Learn how utilizing sunlight for chromium removal can significantly reduce the cost of wastewater treatment. Discover the process, benefits, and potential impact on environmental sustainability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/matribhumisamachar.com\/en\/2024\/09\/03\/removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Removing toxic chromium using sunlight can lower cost of waste water treatment - Matribhumi Samachar English\" \/>\n<meta property=\"og:description\" content=\"Learn how utilizing sunlight for chromium removal can significantly reduce the cost of wastewater treatment. Discover the process, benefits, and potential impact on environmental sustainability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/matribhumisamachar.com\/en\/2024\/09\/03\/removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment\/\" \/>\n<meta property=\"og:site_name\" content=\"Matribhumi Samachar English\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-03T14:53:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.pib.gov.in\/WriteReadData\/userfiles\/image\/image001JHN1.jpg\" \/>\n<meta name=\"author\" content=\"Saransh Kanaujia\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Saransh Kanaujia\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/matribhumisamachar.com\/en\/2024\/09\/03\/removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment\/\",\"url\":\"https:\/\/matribhumisamachar.com\/en\/2024\/09\/03\/removing-toxic-chromium-using-sunlight-can-lower-cost-of-waste-water-treatment\/\",\"name\":\"Removing toxic chromium using sunlight can lower cost of waste water treatment - Matribhumi Samachar English\",\"isPartOf\":{\"@id\":\"https:\/\/matribhumisamachar.com\/en\/#website\"},\"datePublished\":\"2024-09-03T14:53:13+00:00\",\"dateModified\":\"2024-09-03T14:53:13+00:00\",\"author\":{\"@id\":\"https:\/\/matribhumisamachar.com\/en\/#\/schema\/person\/0a61403f4baf9627e92218b53a1e65f1\"},\"description\":\"Learn how utilizing sunlight for chromium removal can significantly reduce the cost of wastewater treatment. 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