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In recent years, membrane technologies combining advantages of biological treatment and membrane filtration have been well advanced in the world practice. Application of an anaerobic membrane bioreactor (AnMBR) for wastewater treatment could be an attractive alternative to recover energy in terms of biogas. The article presents the results of laboratory tests on water treatment in an anaerobic membrane bioreactor with an external hollow fiber module (PVDF). Researches were performed on wastewater of a pulp and pap...

The leather sector is an important source of materials for various industries and fields.This industry generates a big quantity of solid and liquid waste.The whole process that the skin is subjected to contains a series of operations and chemical reactions.Waste from the leather industry can be obtained by using multiple processing methods in different areas. Recovery of waste from the leather industry is an important factor for environmental protection. Nowadays, the elaboration of leather processing methods that...

The biogas obtained through processing of livestock residual waste (dung, manure and residual food), food production waste (fruit, vegetable, meat and dairy residues) and also effluents from industrial and municipal wastewater treatment plants can have a significant contribution in energy supplying and environmental protection. In order to determine the quality of this renewable fuel, it was developed a fast gas-chromatography method, through which it can be establish the calorific values, that have an important i...

Different operations, such as fleshing, trimmings, cuttings and chips from hides, causes leather industry in being one of the most environmental ?unfriendly? sectors. Moreover, the treatment of sewage waters brings up also the problem of mud which is related with the appearance of biodegradation process of organic waste, followed by the emission of greenhouse gases, especially methane and nitrous oxide. All these wastes also imply a terrible smell and a strong land contamination. The large quantity of wastes, but ...