Water​ Treatment System Optimization in China

Water

At Zouping power plant in China, the Company faced significant challenges due to high water consumption of demineralized water used as boiler feed water, coupled with bacterial colonies in the raw water that blocked membrane modules and reduced water treatment capacity by 15%.

To address these challenges, Zouping embarked on an initiative to optimize the water treatment processes. This involved the optimization of chemical agents and the expansion of water outlets. Extensive research was undertaken to identify the most effective chemical agents for wastewater treatment and alternative solutions for defluoridation systems. 

Key Achievements from the Optimization Include:
· Increased recovery rate of reverses osmosis (RO) systems from 70.5% to 72.5%
· Extended cleaning cycle of RO units from 10 days to 50 days
· Prolonged service life of membrane elements doubled from 4 years to 8 years
· Saved approximately 56,000 tonnes of boiler feed water
· Saved USD 120,000 in operational and maintenance costs and additional USD 370,000 in defluoridation equipment costs
Impacts​
USD
Saved in operational and maintenance costs​
%
Prolonged service life of membrane elements​

tonnes​
(approximate)

Saved of boiler feed water​

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