Leather tanning

The use of microalgae biomass is an alternative solution to the problem of environmental pollution due to heavy metals, one of which is Cr metal in leather tanning liquid waste. However, the ability of biomass to adsorb heavy metals has limitations. Therefore, the algal biomass is immobilized with silica gel in order to obtain a stable structure. This research aims to study the absorption efficiency of Cr (VI) metal by the biomass of Spirulina sp. which is immobilized with silica gel from the tannery liquid waste.

11p langthannam 29-12-2021 6 0   Download

Polluted Cr(III/VI) ions were generated from electroplating industry, mining industry, leather tanning, metal finishing, steel fabrication, textile industries... In which, Cr (III) is much less toxic than that Cr (VI). Health effects of exposure to Cr(VI) reported by various studies are eye, nose, and throat irritation, nasal septum ulcerations and perforations, gastritis, gastrointestinal ulcers, contact dermatitis, ulcers, lung cancer.

5p viwinter2711 05-10-2021 7 1   Download

Compliance of eather tanning industry with environmental regulations in Vietnam. Vietnam ’s rap idly increasing leather and footwear export trade has made a signif - icant contribution to the country’s economic develop ment over recent years. However, the rapid growth of the leather industry causes considerable pollution, which poses increased risks to the environment and human health

25p tranminhluanluan 28-05-2018 27 1   Download