TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Method: The method further comprises: supplementing the heated vessel with blood meal and sweet clover and controlling the supplements via a pumping system; recovering the ammonia in an ammonia recovery process from a liquid fraction; stabilizing the ammonia and capturing the ammonia using an acid resulting in a high concentration ammonia liquid product or high ammonium salt comprising a pelletized or granulated product depending on the acid used for the stabilization and capturing; overcoming inhibitory materials produced during digestion by introducing blood meal and sweet clover to the digester to increase protein load within the digester and yielding an increased amount of methane, biomass, and low toxicity ammonium; and calculating a quantity of generated ammonia from an anaerobic biodegradation of dairy manure using blood meal and sweet clover co-substrates via an equation as given in a specification, where moles of protein are derived by proportioning protein concentrations of the substrate, the blood meal and sweet clover co-substrates. Preferred Components: The co-substrate comprises at least one of blood meal and sweet clover. The co-substrate co-digests with the substrate and provides nitrogen and nutrients missing from digestion that prevent inhibiting substances from affecting methanogenesis, where co-digestion of the blood meal and sweet clover balances a protein and amino acid profile within the digester and supplies additional raw plant nutrients to the digester; and the waste material comprises at least one of manure, dairy manure, and other manure based wastes. The heated vessel receives organic waste, blood meal, and clover, where the: organic waste is retained in the anaerobic digester for 20-40 days, and is fed continuously or in batches; and the fresh organic material is mixed with partially-digested material in the heated vessel. The anaerobic digester comprises a single stage digester comprising a vessel with an attached manure reception pit with an attached pump for pumping influent into the vessel, where the: blood meal and clover additives enter the vessel through the pump in the manure reception pit; and mixers mix influent that enters the vessel with the blood meal and clover. The anaerobic digester comprises a multi-stage digester comprising a first vessel and a second vessel, where the: first vessel has an attached manure reception pit with an attached pump for pumping influent into the vessel, blood meal and clover additives enter the first vessel through the pump in the manure reception pit and mixers mix influent that enters the first vessel with the blood meal and clover; hydrolysis occurs in the first vessel and methanogenesis occurs in the second vessel; mixed sludge from the first vessel is pumped into the second vessel; and supernatant is separated from digested sludge and scum in the second vessel. ACTIVITY - Fertilizer.    MECHANISM OF ACTION - None given.    EXAMPLE - No suitable example given.