8 April 2017

Call for papers: "Coagulation-Flocculation in Wastewater Treatment"

For a special issue of the International Journal of Environmental Engineering.

Wastewater is any water that has been adversely affected in quality by anthropogenic influence. Wastewater can originate from a combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and from sewer inflow or infiltration. It originates from homes, businesses, industries, commercial activities and institutions which is directed to treatment plants by a carefully designed and engineered network of pipes. This wastewater is further categorized and defined according to its sources of origin. Growing population and industrial development have increased wastewater generated by urban areas and otherwise. Industrial wastewater is a complex organic and inorganic liquids and can have enormously adverse environmental impacts, depending upon the characteristics of the materials that exist in them. In general, the pollutants in wastewater could be divided into organic matter and inorganic matter which included nitrogen, phosphorus, ammonia and iron chlorides as well as heavy metals. On the other hand, landfill leachate is a concentrated wastewater which is rich in organic compounds which could also pose risk to the health of both humans and living things. Advanced treatment is necessary to treat hazardous chemicals and landfill leachate as they contain high concentrations of recalcitrant organics and organic material. The selection of an appropriate treatment strategy is often not easy. Therefore, in order to meet the standards, suitable treatment alternatives should be established.

Coagulation-flocculation is one of the effective treatment methods commonly applied for industrial wastewater and landfill leachate treatment The performance of the coagulation process depends on the type of coagulant used and the characteristics of the liquid to be treated. A coagulant can be natural or chemical, where aluminium chloride, ferric chloride, polyaluminium chloride and ferrous sulfate are the most common. There are many recent developments in the coagulation-flocculation treatment process to further enhance the treatment performances. To date, researchers are still searching for the optimal conditions in the treatment process. New coagulants are also being developed. Recently, there has been interest in developing composite coagulant to enhance coagulant abilities. Therefore, the papers of this special issue will address research on applications of coagulation flocculation processes in wastewater treatment.

Suitable topics include, but are not limited to, the following:
  • Types of coagulant and flocculants-chemical, natural, combination
  • Novel coagulant and coagulant aids
  • Combination of coagulation-flocculation process with other treatment methods
  • Mechanism and behaviour
  • Cost implications
  • Biodegradability improvement
  • Influence on leachate compositions
  • Pre and post coagulation-flocculation processes
  • Chemical reactions and mass balance
  • Optimisation, modelling and computation
  • Design
  • Other related topics of coagulation-flocculation in landfill leachate treatment
  • Needs also to add other chemical treatments

Important Dates

Submission of manuscripts: 31 May, 2017
Notification to authors: 30 July, 2017
Final versions due: 31 January, 2018

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