Proceedings

No need for heat! The low temperature, high rate anaerobic digestion technology that treats low strength wastewater for the Municipal and Food & Drink wastewater sectors: PRESENTATION ONLY

Dermot Hughes, NVP Energy, Ireland

(free)

NVP Energy have developed a low temperature anaerobic digestion (Lt-AD) technology for the treatment of primary municipal wastewater. The innovative and patent approved microbiology and reactor design enables high-volume, low-strength primary wastewater to be treated. Anaerobic granular biofilms (working at low, ambient temperatures) convert the organic waste within the wastewater to biogas.

Therefore, NVPE cleans high-volume, low-strength WW very efficiently at low temperatures, at a fraction of the cost of other WWT technologies, with minimal sludge production and generates renewable energy.

The unique aspect of the technology is that it is non-temperature dependent and can work at wastewater temperatures as low as 4°C and upwards. This makes it the only high-rate AD system to operate at ambient temperatures, wasting no energy on heating WW, a step-change for the WW industry.

NVPE have a full-scale demonstrator project in operation with Welsh Water at their Builth Wells WwTW. The NVPE & Welsh Water project is a global 1st and has the potential to elicit an enormous global shift in WWT as it will allow all energy-intensive aerobic WWT to be replaced with a pioneering, sustainable solution that reduces energy consumption & exploits a previously untapped resource for the generation of renewable energy.

Authors: Dermot Hughes, Conall Holohan, Joe Shinkwin, and Michael Murray

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