Abdullah ALYAHYAI , In my ...
Published by Joelcio Saturnino, Environmental Business – Marketing & Sales
Abdullah ALYAHYAI ,
In my particular view, the first approach, if you already have a sewage treatment system in operation, is to consider what can be extract from the sludge, before disposal. For example, energy and nutrients can be recovered from sludge, in many different ways, according to your operational needs and conditions, legal demands and financial capacity. By doing so, waste disposal, environmental liabilities and the emission of greenhouse gases can be minimized, or even transformed into some product that can reduces your operating costs or generates revenue for your operation.
Simple solutions such as anaerobic digester can meet de demands of a small-scale cases, recovering energy in the form of biogas and reducing the volume of sludge being discharged. On another side of the complexity scale, I recommend visiting the DC Water website (https://www.dcwater.com/biosolids) and viewing its biosolids management program. Between this two ways, a lot of different solutions and technologies (dewatering, drying, composting, etc.) can be applied, but it is totally necessary to know better the specific technical and financing situation to recommend you the best concept.