Hydrogen sulphide is a toxic gas, it can cause range of physiological responses from simple annoyance to permanent injury and death. There are number approaches deal with the impacts gases. This study focused on minimizing hazard exposure for hydrogen sulfide in different operational zones activated sludge process sewage waterplant. Research tools/ conducted were interviews, gas testers, analys...

Problem statement: The chemical pollution of soil has become a major source of concern and has posed serious health problems within the last few years in many developed nations. A variety of organic and inorganic pollutants, including heavy metals, are being mixed in with the cultivated soil and water. Sewage sludge was one of the major sources of enrichment of heavy metals. These pollutants ar...

The treated sewage sludge under consideration is a hygienized biodegradable waste in the form of pellets. It can be used as fertilizer, but only for spreading on non-agricultural land. Regarding “waste to energy” philosophy, specification pellets an alternative solid fuel according EN 15359 resulted “NCV4; Cl1; Hg3-4” class. major problem regarding final utilization lack facilities energy and m...

Inorganic aluminum ions, [Al(H2O)6]3+, [Al(OH)(H2O)5]2+, and [Al(OH)2(H2O)4]+, are toxic to a number of crops. The aim of this study was to estimate the danger of soil contamination of bioavailable aluminum and heavy metals forms because of alum sludge which was a by-product of water, and wastewater treatment technology using aluminum coagulant is introduced into the soil. Aluminum and selected...