Methods and systems for treating a waste substance containing perfluoro- and polyfluoroalkyl substances (PFAS) and mineralizing the PFAS, at least partially. The method includes combining the PFAS with a first amendment in a reactor to create a combination, heating and pressurizing the combination to hydrothermal conditions, and holding the combination at hydrothermal conditions for a holding time sufficient to at least partially mineralize the PFAS to create a treated combination.

A wastewater management system includes a series of water treatment modules to treat wastewater and produce reusable and/or potable water and other beneficial byproducts of the wastewater treatment process. A pretreatment module, a filtration module, an evaporator module, an odor control module, a UV-light module, an autoclave module, a sonolysis module, an ozone module and a chlorination module are combined in multiple combinations along with holding tanks, condensers, flash tanks and other components to address water purification and reclamation needs based upon specific wastewater conditions. The system captures condensate from AC systems and rainwater from rainwater gutter systems processes the water to produce reusable and/or potable water with or without re-mineralization. Any CO.sub.2 produced by the water treatment system is captured and processed using naturally-occurring flora. The wastewater treatment system includes multiple closed-loop subsystems to minimize energy usage and maximize water purification and reclamation for reuse.

The present invention provides a method of enhancing continuous directional high-value biological conversion of an urban wet garbage open system. The method includes wet garbage crushing, low-energy consumption hydrolysis, continuous conversion of organic components of wet garbage into short-chain fatty acid, continuous directional conversion of other components of short-chain fatty acid into acetic acid, separation and microbial reflux of acetic acid, and the like. In this method, by crushing wet garbage, performing low-energy consumption hydrolysis, and seeding acclimatized activated sludge, two stages of anaerobic fermentations are carried out to firstly convert organic components of the wet garbage continuously into short-chain fatty acid, and then continuously and directionally convert other components of short-chain fatty acid into acetic acid, so as to realize continuous directional high-value biological conversion of the urban wet garbage in an open system without adding pure microbes and a large amount of chemicals.

Aqueous wastewater from hydrothermal liquefaction (HTL) systems is typically high in chemical oxygen demand (COD), which renders classic aerobic wastewater treatment to be prohibitively expensive. HTL wastewater can be processed using thermochemical wet oxidation in a manner that is not only cost efficient but also contributes more heat than is required for the energetically demanding HTL process. Provided are methods and devices for integrated hydrothermal liquefaction of biomass and treatment of resulting wastewater.

An apparatus for treating wastewater, for the recovery of metals contained therein, includes a first pump, a second pump, and a heating element, of which the input is connected to the first pump and the output to a mixer.

The mixer, of which a first input is connected to the heating element, a second input to the second pump, and an output to a cooling element, the input of the cooling element being connected to the mixer and the output to a depressurization component.

The input of the depressurization component is connected to the cooling element and the output to liquid/solid separation element.

The input of the liquid/solid separation component is connected to the depressurization component.

Systems for and methods of treating a fluid containing siloxanes, silanes and/or other silicon compounds. A hot box is configured to receive an initial flow of the fluid, react the flow with water at a temperature and pressure suitable for hydrolysis to generate a first treated flow, in which at least a portion is hydrolyzed to produce silicon dioxide and methane, and discharge the first treated flow. A solid removal mechanism can be configured to receive the first treated flow, separate at least a portion of the silicon dioxide as solid material, and discharge the remaining components as a second treated flow. Techniques of the present disclosure can lead to very low siloxane levels.

A waste peptone disposal system is provided, the system utilizing steam to increase the temperature of the waste peptone and provide active homogenous mixing inside a thermally insulated tank. Steam is introduced through a steam sparging system and directly applied to the waste peptone to reduce noxiousness, allowing the facility to dispose of the processed waste peptone through a wastewater system.

The present Invention relates to a new and novel process for treatment of wastewater that combines treatment methods that use Ballast Material (BM), Hydrothermal Carbonization (HTC), Hydrodynamic Cavitation (HDC), Probiotics (PB), acid, and Bio-Adsorbents (BA) to replace biological treatment of wastewater, specifically Activated Sludge Technology (AST).

Disclosed is a device for treating high-concentration organic wastewater by catalyst hydrothermal gasification, including a CHG reactor, a temporary wastewater storage tank and a condensing heat exchanger which are sequentially in loop connection. The CHG reactor includes a shell, a thermocouple, a water distribution device, and a packing support. The device of the present disclosure can quickly convert the high-concentration organic wastewater into clean energy or harmless gas at a low temperature under the action of a catalyst, so that the energy consumption of a treatment process is greatly reduced, and the treatment efficiency is improved. The device has potential application prospect.

A process of treating sewage sludge and the formation of a granular product thereof, wherein said process comprises utilizing a urea-formaldehyde resin to treat a sludge product from thermal hydrolysis processes (THPs) to create an end product for agricultural and other uses. The process utilizes a high intensity mixing and chopping reactor, which combines the sludge with a resin and utilizes sulfuric or other mineral acid to polymerize the resin. The resultant product is subsequently dried and sized through a screening process. The process results in an end product that is a granular fertilizer that is substantially dehydrated and a substantial portion of the nutrients having low solubility and slow release rates. This reduces or eliminates the loss of plant nutrients to water runoff effects. The novel process results in a product that is a low-odor, enhanced fertilizer useful for the processing and utilization of sewage sludge for agricultural and other purposes.