aims: regarding water as the main source of brio, not only its quantity and being availability is vital, but also its quality must be considered. this study was done in order to determine the correlation between physicochemical bod5 and microbiological parameters (fc and tc) in the kashan university of medical sciences wastewater effluent of activated sludge system.  materials & methods: this d...

In the cellulose industry the Kraft process is widely used to produce cellulose. This process generates huge volumes of inorganic solid wastes, including the grits waste. In Brazil, the final disposal of this solid waste is of high economical and environmental interest. The present work assesses the influence of the addition of grits waste on the densification behavior of soil-cement bricks. Th...

Electrochemical plating is the most widely used coating process for metalizing commodity polymers, such as acrylonitrile–butadiene–styrene (ABS). Conventionally, ABS polymer pretreated in concentrated sulfochromic acid solution before to develop a highly porous surface topography that ensures adhesion. Unfortunately, using chromic produces extremely hazardous chemical waste, which costs manufac...

sawdust which is the main waste from wood industry has been used as a raw material forremoval of brilliant cresyl blue toxic dye. the effects of various parameters such as ph,electrolyte concentration, adsorbent dose, contact time and agitation rate were studied for theremoval of the dye in a concentration of 50 mg l-1. the optimum condition for the studiedparameters was applied for various con...

Electroplating waste water is considered to be harmful to health of animals. In the present study, we tested the hypothesis that electroplating waste water would suppress immune functions in Kunming mice. Twenty-six mice were randomly divided into the control group (n = 13) and the experimental group (n = 13), in which the latter drank electroplating waste water. We found that body mass and mos...

This paper deals with the treatment of hazardous zinc-bearing waste using hydraulic binders and silicone polymers, aim to allow its safe disposal into landfill. The was solidified in first step then encapsulated polymers. Samples were characterised x-ray fluorescence, diffraction, scanning electron microscopy. effectiveness process evaluated by leaching tests distilled water an acidic environme...

background and objectives: in the era of global industrialization, enzymes are being used extensively in the various sectors including food processing. owing to the high price of enzymes, various initiatives have been undertaken by the r&d; sector for the development of new processes or improvement in the existing processes for production of cost effective enzymes. with the advancement in the f...

The contemporary environmental issues are alleviating through green supply chain management (GSCM) practices in the construction industry; bring economic benefit and sustainability for the business organization. Construction industry operations are very complex and integrated supply chain i.e. GSCM practice is the best way to reduce construction waste and improving environmental performance. Th...

Problem statement: Waste generation in the aluminum industry throughout the fabrication processes in Kuwait. Approach: A mathematical model has been developed to analyze the fabrication process and a special heuristic is designed for solving the model. The model uses actual data presented from an Aluminum Fabrication Industry (AFI). Results: Reduced the amount of waste generated substantially d...

The management of construction waste is important today. The scarcity in the availability of aggregate for the production of concrete is one of the important problems facing by the construction industry. Appropriate use of the construction waste is a solution to the fast degradation of virgin raw materials in the construction industry. This paper enlightens the importance of reduce, reuse and r...