Power Plant Wastewater Treatment System
Stamps, Arkansas
A power plant in Southwest Arkansas was faced with the challenge of meeting new "end of pipe" wastewater effluent limits for metals at the plant's two NPDES-permitted outfalls. FTN was retained to evaluate treatment alternatives and to design a cost-effective treatment system to remove metals from wastewater generated by cooling tower blowdown and low volume wastewater systems.The new treatment system combines wastewater streams and consists of three ponds and a constructed wetland system with a maximum system capicity of 1 MGD. Each pond was lined with a 60 mil HDPE liner due to the unavailability of suitable clay. FTN's innovative design concepts successfully applied the pond/constructed wetland system to a steam electric station for metal removal. The client was thus able to save $550,000 on an environmentally friendly system that has no energy consumption and requires miminal operator attention.
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