TIAN Wenhua, ZHOU Li. Key techniques of water saving and reduction of emission and consumption in condensate polishing system[J]. Thermal power generation, 2019, 48(1): 84-89.
TIAN Wenhua, ZHOU Li. Key techniques of water saving and reduction of emission and consumption in condensate polishing system[J]. Thermal power generation, 2019, 48(1): 84-89. DOI: 10.19666/j.rlfd.201809164.
Condensate polishing treatment system consumes a large amount of desalted water
which accounts for more than 50% of the total desalted water consumption in power plants
and the acid-base wastewater produced in the process of equipment regeneration is also an important source of high salt wastewater. The ratio of water consumption can be sharply reduced by increasing the cycle water production and decreasing the self water consumption. Xi'an Thermal Power Research Institute Co.
Ltd. Has developed a new technology for water saving
emission reduction and consumption reduction of condensate polishing treatment system
which includes the optimization technology of operation in high flowrate mixed-bed(HFMB)
the intelligent control technology of polishing treatment mixed bed
the uniform enhancement technology of water distribution in HFMB
and the reduction of chloridion concentration in regenerated waste liquid. All the above technologies can evidently increase the cycle production
reduce the water consumption ratio
save the desalinated water and fresh water significantly
and decrease the waste water discharge and consumption of acid-alkali wastewater. Moreover
these technologies can greatly decrease the cost of zero discharge and operation fees. This method of water saving in process has been successfully used in more than thirty power plants in China. It is a low cost water saving method and has good popularization and application prospect.