every day cities and towns need to treat Wastewater and its sludge which is an energy intensive process at anglian Waters great billing Wastewater Center in the UK they don't just treat the Wastewater sludge they convert it into valuable products using violia's monsol Advanced anaerobic digestion and a combined heat and power gas engine here's how it works anglian Waters great billing facility brings in sludge cake from other nearby Wastewater plants via truck [Music] after unloading the truck into the raw sludge system the imported raw untreated sludge cake is Blended with the sludge indigenous to the great billing site the combined sludge is Blended prior to being transferred to the digestion plant to provide a consistent material for the advanced digestion process the biological hydrolysis process is the key enabler of advanced anaerobic digestion it's the sludge to allow the existing digesters to treat more sludge and increase the volatile solid's conversion rate the biological hydrolysis process optimizes the sludge temperature initial heating brings the sludge temperature to 42 degrees Celsius or 108 degrees Fahrenheit in the final stages of the process the temperature is raised to 55 degrees Celsius or 131 degrees Fahrenheit which neutralizes pathogens and enables the broader system to produce an enhanced biosolids product from the biological hydrolysis plant the hydrolyzed sludge is transferred to the digesters in the absence of oxygen the digesters bacteria break down the sludge to create a biogas at an optimal rate [Music] violio's patented biological hydrolysis process digester performance is dramatically improved achieving higher gas retention with shorter digester retention time in comparison to Conventional mesophilic digestion this allows significantly more sludge to be treated in the existing infrastructure [Music] at Great billing the amount of sludge treated through existing digesters was increased by three times using violia's process which allowed the plant to become anglian water's main Regional sludge Treatment Center [Music] methane-rich biogas is drawn from the digesters and converted into renewable electricity and heat using CHP gas engines great billing sufficient renewable electricity is generated to meet the demand of the entire wastewater treatment plant with Surplus electricity exported to the National Grid heat recovered from the CHP units cooling systems and exhaust gases provides virtually all the heat needed to support violia's Advanced anaerobic digestion process [Music] following digestion the digestate is sent for dewatering to produce cake used for land application as a nutrient-rich fertilizer violia's Advanced anaerobic digestion technology can be applied to both existing and new build wastewater treatment plants [Music] violios process guarantees digester performance which allows water utilities to harness the energy that is present in Wastewater sludge and transform from energy users to energy producers foreign [Music]