About Us Public Information Board Information Industrial Pretreatment Program Information What is “Flushable”? Privacy Policy 1 2 Contact Us Lewiston-Auburn Water Pollution Control Authority Our facility is regularly staffed Monday – Friday from 6:00 a.m. to 2:00 p.m. Please contact us to schedule visits and appointments. Waste Water Treatment Plant Info: **Mailing Address: PO Box 1928 Lewiston, Maine 04241 Physical & Shipping Address: 535 Lincoln Street Lewiston, Maine 04240 Telephone: (207) 782-0917 Fax: (207) 782-9877 UPDATE: As of October 15, 2021, we will no longer accept RV waste One resource for finding alternative locations is here: RV Dumps, Sani Station, Dump Points comprehensive directory Privacy Policy © 2021 LAWPCA - WordPress Theme by Kadence WP

About Us Public Information Board Information Industrial Pretreatment Program Information What is “Flushable”? Privacy Policy Project Summary Anaerobic Digestion Project Summary Privacy Policy © 2021 LAWPCA - WordPress Theme by Kadence WP

About Us Public Information Board Information Industrial Pretreatment Program Information What is “Flushable”? Privacy Policy Anaerobic Digestion Anaerobic digestion is a series of biological processes in which microorganisms break down biodegradable material in the absence of oxygen. One of the end products is biogas, which is combusted to generate electricity and heat, or can be processed into renewable natural gas and transportation fuels. A range of anaerobic digestion technologies are converting livestock manure, municipal wastewater solids, food waste, high strength industrial wastewater and residuals, fats, oils and grease (FOG), and various other organic waste streams into biogas, 24 hours a day, 7 days a week. Separated digested solids can be composted, utilized for dairy bedding, directly applied to cropland or converted into other products. Nutrients in the liquid stream are used in agriculture as fertilizer. The Biological Process The digestion process begins with bacterial hydrolysis of the input materials in order to break down insoluble organic polymers such as carbohydrates and make them available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. Acetogenic bacteria then convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide. Municipal Wastewater Wastewater treatment plants employ anaerobic digesters to break down sewage sludge and eliminate pathogens in wastewater. Technologies available for municipal wastewater fall into tthree general categories — mesophilic, thermophilic, and temperature-phased systems. Information retrieved from: https://americanbiogascouncil.org/resources/ Privacy Policy © 2021 LAWPCA - WordPress Theme by Kadence WP