1 Scope
This document specifies guidelines for wastewater treatment and reuse in thermal power plants , including the types and characteristics of wastewater and the technologies of wastewater
treatment and reuse.
In this document, thermal power plant drainage systems are divided into fuel supply, chemical water treatment, boiler and
auxiliary, recirculating cooling, flue gas processing, gasification scrubber and ash
handling. Wastewater from these systems is classified in accordance with its system
sources. In addition, technical guidelines for wastewater treatment and reuse are
provided according to the water requirements of systems in the thermal power plant . This document is formulated to provide feasible technical guidance for the treatment
and reuse of wastewater in thermal power plants .
It is applicable to coal-fired, oil-fired, gas-fired (including gas turbine), biomass-fired,
waste incineration and integrated gasification combined cycle ( IGCC ) thermal power plants .
BS ISO 4789:2023 history
2023BS ISO 4789:2023 Guidelines for wastewater treatment and reuse in thermal power plants