A review on heavy metal pollution, toxicity and remedial measures: Current trends and future perspectives

The invention relates to a wastewater treatment process. In one embodiment, introducing raw sewage in a biological contactor 22 having a series of discs 24 mounted on a common shaft 25. To the wastewater stream an adsorbent capable of adsorbing impurities from the liquid. This adsorbent is, for example activated carbon is added at 26. The addition of this adsorbent improves the operating characteristics of the biological contactor and the solids were removed accumulated on the contactor at a rate equivalent to the rate at which these solids accumulate.

of wastewater treatment

Recent advances in removal techniques of Cr(VI) toxic ion from aqueous solution: A comprehensive review

Lignin valorization for the production of renewable chemicals: State-of-the-art review and future prospects.

Understanding adaptation of biological communities to environmental change is a central issue in ecology and evolution. Metagenomic analysis of a stressed groundwater microbial community reveals that prolonged exposure to high concentrations of heavy metals, nitric acid and organic solvents (~;;50 years) have resulted in a massive decrease in species and allelic diversity as well as a significant loss of metabolic diversity. Although the surviving microbial community possesses all metabolic pathways necessary for survival and growth in such an extreme environment, its structure is very simple, primarily composed of clonal denitrifying ?- and ?-proteobacterial populations. The resulting community is over-abundant in key genes conferring resistance to specific stresses including nitrate, heavy metals and acetone. Evolutionary analysis indicates that lateral gene transfer could be a key mechanism in rapidly responding and adapting to environmental contamination. The results presented in this study have important implications in understanding, assessing and predicting the impacts of human-induced activities on microbial communities ranging from human health to agriculture to environmental management, and their responses to environmental changes.

Metagenomic Insights into Evolution of a Heavy Metal-Contaminated Groundwater Microbial Community

A novel modification of lignin on corncob-based biochar to enhance removal of cadmium from water.

Trifolium repens L. regulated phytoremediation of heavy metal contaminated soil by promoting soil enzyme activities and beneficial rhizosphere associated microorganisms.

Ammonia-nitrogen and phosphates sorption from simulated reclaimed waters by modified clinoptilolite

Effects of endophytes inoculation on rhizosphere and endosphere microecology of Indian mustard (Brassica juncea) grown in vanadium-contaminated soil and its enhancement on phytoremediation.

The surface characteristics of hyperbranched polyamide modified corncob and its adsorption property for Cr(VI)

Hai Lin

Papers

A novel modification of lignin on corncob-based biochar to enhance removal of cadmium from water.

Trifolium repens L. regulated phytoremediation of heavy metal contaminated soil by promoting soil enzyme activities and beneficial rhizosphere associated microorganisms.

Ammonia-nitrogen and phosphates sorption from simulated reclaimed waters by modified clinoptilolite

Effects of endophytes inoculation on rhizosphere and endosphere microecology of Indian mustard (Brassica juncea) grown in vanadium-contaminated soil and its enhancement on phytoremediation.

The surface characteristics of hyperbranched polyamide modified corncob and its adsorption property for Cr(VI)