Feed water is required to wash the fabrics of a filter press in a municipal water treatment plant. The water must be treated to meet the quality criteria for use as process water in the plant.
The first step in this study was the determination of the water source to produce the feed water intake required to the plant. The second step was the evaluation and selection of an efficient and economical separation process to meet the target water quality criteria.
The water intake source is from an underground source. The water quality contains high iron content; which can be problematic in the case of precipitation. The suggested solution was the addition of chemicals to control the oxidation state of the iron; so, it will remain in solution to avoid precipitation.
Quebec City municipal water treatment plant