Heavy metal removal from aqueous solution by advanced carbon nanotubes: Critical review of adsorption applications

Sorption of divalent metal ions from aqueous solution by carbon nanotubes: A review

Adsorption of divalent heavy metal ions from water using carbon nanotube sheets.

Inertness and the indiscriminate use of synthetic polymers leading to increased land and water pollution are of great concern. Plastic is the most useful synthetic polymer, employed in wide range of applications viz. the packaging industries, agriculture, household practices, etc. Unpredicted use of synthetic polymers is leading towards the accumulation of increased solid waste in the natural environment. This affects the natural system and creates various environmental hazards. Plastics are seen as an environmental threat because they are difficult to degrade. This review describes the occurrence and distribution of microbes that are involved in the degradation of both natural and synthetic polymers. Much interest is generated by the degradation of existing plastics using microorganisms. It seems that biological agents and their metabolic enzymes can be exploited as a potent tool for polymer degradation. Bacterial and fungal species are the most abundant biological agents found in nature and have distinct degradation abilities for natural and synthetic polymers. Among the huge microbial population associated with polymer degradation, Pseudomonas aeruginosa, Pseudomonas stutzeri, Streptomyces badius, Streptomyces setonii, Rhodococcus ruber, Comamonas acidovorans, Clostridium thermocellum and Butyrivibrio fibrisolvens are the dominant bacterial species. Similarly, Aspergillus niger, Aspergillus flavus, Fusarium lini, Pycnoporus cinnabarinus and Mucor rouxii are prevalent fungal species.

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Review on the current status of polymer degradation: a microbial approach

Kinetic and equilibrium studies of biosorption of Pb(II) and Cd(II) from aqueous solution by macrofungus (Amanita rubescens) biomass

Simultaneous biosorption of cadmium (II) and lead (II) ions by pretreated biomass of Phanerochaete chrysosporium

http://envismadrasuniv.org/Biodegradation/pdf/Glycols%20using%20sludge%20microbes.pdf

Aerobic and anaerobic biodegradation of polyethylene glycols using sludge microbes

Miniature vacuum sensor based on gas adsorptions from carbon nanotube field emitters

This invention relates to an integrated cyclic anaerobic-aerobic method for treating organic wastewater. This invention provides a more efficient and economic integrated cyclic anaerobic-aerobic method for treating high-concentration organic wastewater. The method comprises: passing raw water through an adjustment pool into an anaerobic pool and an aerobic pool, stirring in the anaerobic pool by a stirrer, biologically degrading in the two pools, filtering the exit water from the anaerobic pool, introducing into the entrance of the aerobic pool through a constant flow pump, discharging the sludge from the bottom, controlling the flow rate at 0.01-1000 mL/min and a stopping time of 12-144 h by the computer-powered constant flow pump, controlling the cyclic period of the reactor at 1-8 h so that the wastewater is circulated in the two reactors, and discharging when qualified.

Xinkai Liao

Papers

Simultaneous biosorption of cadmium (II) and lead (II) ions by pretreated biomass of Phanerochaete chrysosporium

Aerobic and anaerobic biodegradation of polyethylene glycols using sludge microbes

Miniature vacuum sensor based on gas adsorptions from carbon nanotube field emitters

Integrative anaerobic ¿C aerobic circulation biological method for treating organic wastewater