A solid waste treatment method includes the steps of: degradation and sterilization via chlorination of the solid waste, stabilization of the solid waste and regeneration of biomass to reduce or eliminate solid waste. The solid waste treatment method may be utilized in agricultural, industrial or municipal settings.

Phagotrophic algae are used in connection with aerobic or anaerobic digestion of solids, especially waste activated sludge (WAS), to more efficiently digest solids and to meet, over a shorter period of time, volatile solids standards and specific oxygen uptake rate requirements as well as pathogen reduction requirements.

Phagotrophic algae are used in connection with aerobic or anaerobic digestion of solids, especially waste activated sludge (WAS), to more efficiently digest solids and to meet, over a shorter period of time, volatile solids standards and specific oxygen uptake rate requirements as well as pathogen reduction requirements.

This invention is a method for the processing of organic materials or organic wastes in a cost-effective and environmentally sound manner. The invention works both in the anaerobic or aerobic state. Processing organic material is accomplished by forcing the flow of gas through a pile of material, containing some organic matter, with liquids and gravity. The movement of gas and liquids through the pile results in very large increases in microorganism populations, accelerated evolution of the microorganisms, and corresponding increases in the processing provided organic materials.

This invention is a method for the processing of organic materials or organic wastes in a cost-effective and environmentally sound manner. The invention works both in the anaerobic or aerobic state. Processing organic material is accomplished by forcing the flow of gas through a pile of material, containing some organic matter, with liquids and gravity. The movement of gas and liquids through the pile results in very large increases in microorganism populations, accelerated evolution of the microorganisms, and corresponding increases in the processing provided organic materials.

The present invention discloses a composite biogenic flocculant for enhancing flocculation and dewaterability of chemically enhanced primary treatment (CEPT) sludge. The present invention also discloses method of conditioning CEPT sludge using the composite biogenic flocculant.

The present invention discloses a composite biogenic flocculant for enhancing flocculation and dewaterability of chemically enhanced primary treatment (CEPT) sludge. The present invention also discloses method of conditioning CEPT sludge using the composite biogenic flocculant.

Microbial reactors are provided for ammonium oxidation. Briefly, a reactor comprises a medium including an ammonium component and a Feammox bacterium and/or enzyme(s) thereof capable of oxidizing ammonium with electron transfer to an anode in contact with the medium. As described further herein, use of the anode as an electron acceptor can mitigate or overcome the disadvantages associated Fe(III) acceptor. In some embodiments, for example, ammonium oxidation in the reactor can proceed in the absence of Fe(III) and/or other metal compounds operable to function as an electron acceptor in the medium. Moreover, the medium may further comprise one more contaminants in addition to the ammonium component.

A method for providing an optimized organic load to a downstream wastewater treatment process includes the steps of: providing a primary wastewater treatment plant including an organic harvester (OH) with an OH effluent output stream with temporal variation in organic content, a sludge filtrate outflow from the primary wastewater treatment plant, a valve controlled by a controller, and a sensor communicatively coupled to the controller, the sensor disposed downstream of a combined outflow line to measure an organic content of a combined outflow to the downstream wastewater treatment process; sensing the organic content of the combined outflow to the downstream wastewater treatment process; adjusting the valve controlled by the controller to maintain about a setpoint organic content concentration of the combined outflow to the downstream wastewater treatment process by supplementing the OH effluent output stream with organically rich matter from the sludge filtrate outflow.

A sludge treatment system, comprising a pump (1), an ozone generation device, an ejector (2) and pipe reactors (3). The pump (1), the ozone generation device, the ejector (2) and the pipe reactors (3) are sequentially connected by pipes. An oxygen generator (4) and an ozone machine (5) are arranged within the ozone generation device, and are connected by a pipe. The ozone generation device is used for providing ozone into the pipe reactors (3). The inner surfaces of the pipe reactors (3) are coated with a catalyst layer used for increasing the oxidative capacity of the ozone on the sludge. Spiral fin plates (6) allowing a fluid to generate a spiral flow are arranged within the pipe reactors (3). Also disclosed is a sludge treatment method using the present sludge treatment system. The present system has a high ozone utilization rate, and a low ozone input proportion.