normal 0 false false false en-us x-none fa background: nowadays wastewater is one of the important sources of environmental pollutions and   one of the aims of wastewater treatment is to maintain a healthy environment. nonstandard wastewater discharges and their use in agriculture or discharge to surface water will follow environmental and health hazards. the aim of this study was to compare th...

phosphorus is an important nutrient for plant and microorganisms growth, thus has an important role in creating eutrophication of surface waters. the present study has investigated poly aluminum chloride efficiency on orthophosphate removal by coagulation and chemical precipitation process in municipal wastewater in west wastewater treatment plant. this bench scale study was performed on influe...

most of the water treatment plants in iran discharge their sludge to the environment whithout consideration of possible side effects. since this kind of sludge is generally considered pollutant, the sludge treatment of water industry seems to be an essential task. obviously theweight and volume of solids produced during the coagulation process are much more than other wastes of water treatment ...

this paper presents the criteria and applied methods in the screening of potential sites for the wastewater treatment plant of the falavarjan district, northwest of esfahan province. for this the nine parameters that were selected as main criteria, 7 parameters were considered to define the buffer zones in the natural and artificial terrains. at the first stage of the study, unsuitable zones we...

introduction: due to the risks of hormones on human health and aquatic life, the aims of this study were to determine the efficiency of estrogen removal in the different stages of shiraz wastewater treatment plant using activated sludge process and marvdasht wastewater treatment plant using aerated lagoons process and also comparing the performance of both systems in removing the hormone of est...

Hospital wastewater contains pathogenic agents and hazardous compounds; so, it will cause many risks on environmental and human health of different communities. The aim of this research was to investigate the efficiency of hospital wastewater treatment plant in north of Iran. This cross-sectional descriptive research was done on four hospital wastewater treatment plant in north of Iran during 2...

This review paper deals with the previous and current wastewater treatment plant modelling. The future of semantic modelling in a wastewater treatment plant through a new approach, Artificial Immune Systems (AIS), is introduced. AIS is still in the infant stage of soft computing. However, it has gained its popularity in the recent years, especially in prediction modelling. The first dynamic mod...

upflow anaerobic sludge blanket (uasb) reactors have been widely used for treatment of industrial wastewater. in this study, performance of a lab-scale up-flow anaerobic sludge blanket (uasb) reactor, treating a chemical synthesis-based pharmaceutical wastewater, was evaluated under different operating conditions. a (p.e) pipe with a diameter of 250 mm and total height of 120 cm and effective h...

To improve the effluent quality in accordance with the European and Romanian technical normative, in Ploieşti there will be built a new wastewater treatment plant with both the mechanical and biological steps, including the sludge treatment with an improved technology in pollutants’ removal. In literature, there are presented expert systems developed for wastewater treatment domain, being outli...

Mission To safely collect and treat wastewater in compliance with all regulatory requirements using state‐of‐the‐ art technology in the most cost‐effective manner in order to improve the environment and enhance the quality of life in Fairfax County. Focus The Wastewater Management Program includes wastewater collection and conveyance, wastewater treatment, and planning and monitoring program a...