Open Planning of Sanitation Systems

Open Planning of Sanitation SystemsAppendix 5Questionnaire regarding the use of planning andimplementation tools in ecosan projectsElisabeth Kvarnström, VERNA Ecology, Inc and Ebba af Petersens, WRS Uppsala AB.Please, answer before April 7, 2003 to elisabeth@verna.se11. In your ecosan projects, is some kind of terms of requirements used before making thechoice of technique?YESNOIf yes, please specify.12. Of the following criteria, - which do you regard as important when deciding upon whichtechnique to use for wastewater treatment? Please, give your priority for each criteria; 3: veryimportant, 2: important, 1: not important.Hygiene and disease protection – of the receiving waters and users as well asagricultural land receiving the nutrient or water resource. Quality of the dischargedwater from the system (grey water or black water) and the wastewater fractions (urine,faeces, sludge etc)Water Protection – amount of nutrients and other undesired substances reaching thereceiving watersRecycling of nutrients – possibilities to reuse nutrients from the systemRecycling of water – possibilities to reuse water from the systemEconomics – the cost of installing and maintaining the systemReliability – how well the technique works for variations in load, different seasons etc31