Description: Biosolids system improvements pay for themselves
The WRF serves about 35,000 customers and processes an average of 34 ML/d (9 mgd). The facility meets strict phosphorus limits, and the county is planning for potential future nitrogen limits.
PublisherWater Environment Federation
Word count542
Description: Biosolids system improvements pay for themselves
The WRF features thermal hydrolysis process (THP) technology, which is a pretreatment process applied prior to anaerobic digestions of residuals and bio-waste. A small pool of companies provides this technology, which had been installed only once before in the U.S. but has been used widely throughout Europe and other parts of the world. The unit capacity of Medina County’s THP system is 25...
PublisherWater Environment Federation
Word count471
Description: Biosolids system improvements pay for themselves
Traditional U.S. digester tanks are constructed from concrete and typically take 6 to 9 months to build, depending upon the number of tanks and their size. This upgrade incorporates three Lipp America Tank Systems (Muskegon, Mich.), a subsidiary of Lipp GMBH (Tannhausen, Germany), spiral-seam steel tanks: two are anaerobic-digestion tanks and one is a high-strength waste storage tank. The...
PublisherWater Environment Federation
Word count395
Description: Biosolids system improvements pay for themselves
The existing system at the WRF removed phosphorus in an unrecoverable form. The upgrade to sidestream enhanced biological phosphorus removal (SEBPR) and a struvite recovery system will enable the county to maintain low effluent phosphorus limits, produce a valued fertilizer product, and become more sustainable.
PublisherWater Environment Federation
Word count417
Description: Biosolids system improvements pay for themselves
As of early February 2019, construction is complete and commissioning under way. One of the two digesters is full and functioning as intended, and the facility staff is in the process of filling the second digester.
PublisherWater Environment Federation
Word count236