Sewage Treatment Plant
Sewage Treatment Plant, or domestic wastewater treatment, is the process of removing contaminants from wastewater and household sewage, both runoff (effluents) and domestic. The task of designing and constructing facilities for treating wastewaters falls to environmental engineers. They employ a variety of engineered and natural systems to get the job done, using physical, chemical, biological, and sludge treatment methods. Its objective is to produce a waste stream (or treated effluent) and a solid waste or sludge suitable for discharge or reuse back into the environment.
Effluent Treatment Plant
Water scarcity and contaminated drinking water will be a great challenge in the 21st century. Industrial wastewater of various industries undergoes series of treatment processes before being discharged to the environment. Such Effluent Treatment Plant (ETP) normally employs primary and secondary treatment methods mainly to reduce the contaminant levels in wastewater. However due to increased burden on natural water resources it is now necessary to recycle and reuse wastewater to improve water utilization efficiency.
Zero-liquid discharge Plant
Zero-liquid discharge (ZLD) is a water treatment process in which all wastewater is purified and recycled; therefore, leaving zero discharge at the end of the treatment cycle. Zero liquid discharge is an advanced wastewater treatment method that includes ultrafiltration, reverse osmosis, evaporation/crystallization, and fractional electro deionization.