TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Method: (I) and (V) includes digestion of at least a second portion of (B) under anaerobic conditions, produces gaseous carbon compounds, a second clear decant and a second (B) and feeding the second (B) for partially oxidizing, separation of the second clear decant from the second (B) and monitoring the oxidation reduction potential (ORP) of the conditioned effluent and adding oxidant for partially oxidizing step to maintain ORP at a predetermined level. The partially oxidizing step of (I) comprises electrolysis. (I) includes conducting electrolysis of an aqueous stream to produce an oxidizing agent and utilizing the oxidizing agent for partial oxidization. (II) comprises generating molecular hydrogen during electrolysis and introducing the molecular hydrogen during the contact of the acidic effluent with anaerobic methanogenic microorganisms to facilitate the conversion of acidic effluent to methane. (II) is integrated with a fermentation process, where the fermentation process comprises fermenting a feed comprising plant matter to produce a fermented feed and separating the fermented feed into a product stream, a waste fermentation effluent (comprising organic waste material) and waste solids, subjecting the waste solids to electrolysis to produce conditioned waste solids and contacting the conditioned waste solids with anaerobic acidogenic microorganisms. The electrolysis comprises a first electrolysis step and the process includes subjecting the feed comprising plant matter to a second electrolysis step before fermenting the feed to generate hydrogen and introducing the hydrogen to the contact of acidic effluent with anaerobic methanogenic microorganisms in order to facilitate conversion of acidic effluent to methane. (I) and (II) includes separation of clear decant from (B), where the separation is carried out using a gravity settling tank. (II) includes subjecting at least another portion of (B) to contact with acidic effluent and reducing the particle size of at least a portion of (B). (II) includes monitoring the ORP of the conditioned effluent and adding oxidant for electrolysis to maintain the ORP at a predetermined level. (III) includes separation of at least a portion of the first clear decant by means of a membrane system to allow organic acids having molecular weights below a desired molecular weight to pass there through in preference to organic acids having molecular weights above the desired molecular weight and passing the organic acids passing through the membrane system to contact with anaerobic methanogenic microorganisms. (IV) includes returning at least a first portion of (B) for digestion to control the system net growth rate, where at least a portion of (B) comprises a second portion of (B). The stream of oxidizing agent comprises a first stream from electrolysis step and including the production of a second neutralizing stream from the electrolysis step. The process includes adding the second neutralizing stream to the conditioned effluent. (V) includes providing a neutralizing stream from the electrolysis and returning the neutralizing stream to the conditioned effluent.Preferred Process: The contact of (A) with anaerobic acidogenic microorganisms is carried out at 30-70 degreesC, a hydraulic retention time of 1-24 hours and a solid retention time of 1-72 hours. The contact of the acidic effluent with anaerobic methanogenic microorganisms is carried out at a temperature of 30-70 degreesC, a hydraulic retention time of 1-100 days and a solid retention time of 1-1000 days. The digestion of (A) is carried out under aerobic or anaerobic conditions. The stream of oxidizing agent and the oxidizing agent has an ORP of +300 to +1400 mv and pH of 0-14. The second neutralizing stream and the neutralizing stream have an ORP of -300 to -800 mv and pH of 1-14. The oxidizing agent has pH of 1-14 (preferred).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The aqueous stream includes an acid or a salt. The salt comprises sodium chloride. The oxidizing agent precursor and the feed stream comprises an acid (hydrochloric acid, nitric acid and/or sulfuric acid).