LI Yajuan, WANG Zhengjiang, YU Yaohong, et al. Effect of super-clean emission retrofitting on water balance system of coal-fired power plants with zero wastewater discharge[J]. Thermal power generation, 2015, 44(12): 129-132.
LI Yajuan, WANG Zhengjiang, YU Yaohong, et al. Effect of super-clean emission retrofitting on water balance system of coal-fired power plants with zero wastewater discharge[J]. Thermal power generation, 2015, 44(12): 129-132.DOI:
Taking four 600 MW coal-fired units as the examples
the effect of boiler super-clean emission transformation on water balance system with zero wastewater discharge was analyzed.The actual monitoring results show that
the boiler super-clean emission broke the original water balance system of the unit with zero wastewater discharge
which will cause the total water consumption of desulfurization system reduce by 35%to 40%
and that of the denitration and dust removal change little.Thus
for air cooling and once-through cooling units
the gas desulfurization system can achieve new water balance by reducing the feed-water of industrial water.For the water-cooling power units
the new wastewater zero discharge system can be established by setting up wastewater desalination recycling treatment system or improving concentration ratio of circulating water.