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However,a free,easily accessible,and evolving as part of a project associated with the 1993 Middle <br /> computer-based tool exists to help ensure that all East Peace Talks and was funded by the U,S.Agency <br /> possible treatment options are considered,The for International Development.WAWTTAR has <br /> Water and Wastewater Treatment Technologies been expanded and revised numerous times,most <br /> Appropriate for Reuse(WAVMAR)model is a recently in 2005 as part of a project funded by the <br /> prefeasibility planning tool intended to assist planners U.S.Environmental Protection Agency. <br /> in selecting suitable water and wastewater treatment The target audience for WAWTTAR is local <br /> options appropriate to the material and manpower engineers and planners(with water or wastewater <br /> resources available to particular communities treatment training) doing community water <br /> throughout the world.WAWTTAR can estimate the or wastewater feasibility or facility planning; <br /> localized performance and cost of many possible government or nongovernmental engineers <br /> systems for any location and condition with basic performing evaluations of consultant or donor <br /> information on the problem to be solved.WAW'17AR proposals; and technical students, engineers, <br /> is designed to assist in alleviating the problem of planners,and government decision-makers looking <br /> overlooking good processes and help screen out for an educational resource addressing water and <br /> treatment technologies that are inappropriate for wastewater treatment processes.Versions of the <br /> particular locations and situations. program have been under development and in use <br /> for 16 years. <br /> What Is WAWTTAR? WAWTTAR's main use is as a tool to screen and <br /> WAWTTAR is a tool to assist in the planning research possible water and wastewater treatment <br /> and implementation of wastewater treatment options.It is intended to help planners improve <br /> systems,including treatment systems incorporating their strategies for water and wastewater treatment <br /> wastewater reuse.The program was designed to be in any location and under local conditions.It will <br /> used at the prefeasibility step In facility planning not choose the"best"possible option for a specific <br /> and infrastructure investment.The program has a situation—this can only be done by using solid <br /> database of more than 200 centralized and onsite engineering judgment.However,it can be used <br /> water and wastewater treatment processes and to evaluate many more systems on the basis of <br /> is user-expandable,The database of processes performance and cost-effectiveness than ordinarily <br /> includes information on removal efficiencies, would be possible.WAWTTAR,therefore,facilitates <br /> resource requirements,basis for design,color selection of sensible options. <br /> photographs,line drawings,and referenced text - -- <br /> files.WAWTTAR can formulate a wide range of How Do I Use WAWTTAR? <br /> .... treatment trains and estimate the costs needed to A typical WAWTTAR user would begin by <br /> build and operate them,WAWTI'ARwas developed selecting an appropriate discharge.standard, <br /> Screening Process Used To Identify Feasible Treatment Trains in WAWTTAR <br /> Resource Social/cultural Process Reuse quality Final effluent <br /> requirements considerations limitations limitations quality <br /> WAWTTAR=Water and Wastewater TFeatmeM Technologies Appmpdete for Reuse. <br /> �' WE&T WWW.WEF.ORG/MAGAZINE <br />