There are provided processes for treating a residual. For example, such processes can comprise treating a mixture comprising the residual, a peracid or source thereof and an ammonium salt in a reactor, with an electric field, by means of at least one anode and at least one cathode that define therebetween an electrokinetic zone for treating the mixture. Such processes allow for inactivation of at least one type of pathogen in the residual so as to obtain a treated residual.

Various methods and systems are provided for electrokinetic dewatering of suspensions such as, e.g., phosphatic clay. In one example, among others, a system for continuous dewatering includes a cake formation zone including a first anode and a first cathode each extending across a first portion of a separation chamber; a cake dewatering zone including a second anode and a second cathode; an inlet configured to supply a dilute feed suspension comprising solids suspended in water to the cake formation zone; and a conveying belt extending between the first anode and the first cathode and between the second anode and the second cathode. A first electric field between the first anode and the first cathode forms a cake on the conveying belt by consolidating the solids, and a second electric field between the second anode and the second cathode dewaters the cake on the conveying belt.

A pH treatment and method for extraction of leachable resources and pollutants from sludge. A volume of wastewater sludge is initially dewatered followed by adding pH adjusting agents to the dewatered sludge to remove acid/base-soluble contaminants. The acid/base-soluble contaminants are flushed out or dewatered from the treated product. Treated sludge can then be sent to storage and held for beneficial uses.

Methods and systems are provided for processing PFAS-contaminated waste via thermomechanochemical (TMC) processing. In one example, a system may include a TMC processing chamber including a milling system and coupled to a heating system, the heating system configured to co-operate with the milling system to process the waste material. A plurality of containers including the waste material in one or more of a liquid-solid state, a semi-wet or slurry solid state, and a dry solid state are coupled to the TMC chamber.

The present disclosure discloses a method for preparing a sludge conditioner from water supply sludge and a use of the sludge conditioner. The sludge conditioner is prepared by mixing the water supply sludge and sewage sludge. The method includes the following steps: mixing the water supply sludge and the sewage sludge in proportion, adding a pore forming agent, stirring a mixture uniformly, and conducting mechanical dehydration, air-drying, grinding, sieving, and pyrolysis to obtain the sludge conditioner. The conditioner is used in advanced oxidation technologies such as catalyzed/activated ozone oxidation, persulfate oxidation, and Fenton oxidation to condition the sludge and enhance dehydration performance. The sludge carbon-based conditioner with efficient catalytic performance and adsorption performance is prepared from the sludge of a water supply plant and a sewage plant, and a chemical conditioning technology of advanced oxidation is coupled for improving the dehydration performance of sludge and adsorbing heavy metals.

The continuous treatment of a flow of organic liquid sludge is disclosed. Following the optional addition of granular mineral matter to the flow, the sludge is injected at a rate q into a column of air which is at overpressure relative to atmospheric pressure. The air column is circulating at a rate Q>5q in a chamber extending over a specific length in order to create a fluidized bed, in which the sludge is aerolized, between air supply piping upstream of the sludge injection and an outlet reservoir downstream of the fluidized bed, the reservoir being substantially at atmospheric pressure. A flocculant is introduced continuously downstream of the chamber into the fluidized bed in order to aggregate the organic matter before the solid part obtained in this way is separated from the liquid part, the resulting solid part thus being deodorized.

The present invention describes a PEF (pulsed electric field) chamber comprising a PEF treatment tube 2, a casing 3 and at least two electrode 5 units 4, 5, wherein said at least two electrode units 4, 5 are insertable to be fixated in the casing 3 and into the PEF treatment tube 2.

The disclosure relates to an apparatus, system, and methodology for treating nested waste matter, including a delivery system for delivering a volume of untreated material; a confined container having an inlet connected to the delivery system; an energy impingement device introduced transversely into said confined container, where the energy impingement device is configured to deliver a volume of injected fluid and further configured to treat the volume of untreated material in said confined container and wherein the confined container has an outlet for exiting a volume of treated material.

The disclosure relates to an apparatus, system, and methodology for treating nested waste matter, including a delivery system for delivering a volume of untreated material; a confined container having an inlet connected to the delivery system; an energy impingement device introduced transversely into said confined container, where the energy impingement device is configured to deliver a volume of injected fluid and further configured to treat the volume of untreated material in said confined container and wherein the confined container has an outlet for exiting a volume of treated material.

Various examples related to electrokinetic dewatering (EKD) of suspensions such as, e.g., phosphatic clay suspensions are provided. In one example, a system for continuous EKD includes cake dewatering unit having a lower conveying belt extending across a dewatering chamber; an upper conveying belt extending across at least a portion of the dewatering chamber; and a sludge inlet configured to supply a sludge suspension on the first end of the lower conveying belt. The conveying belts can extend across the dewatering chamber at an angle. Rotation of the conveying belts draws the sludge suspension through an electric field where the sludge suspension is dewatered. The electric field can be established between an upper anode and a lower cathode. The upper and lower conveying belts can include the anode and cathode. A suspension thickening unit can provide a thickened sludge suspension the cake dewatering unit for enhanced dewatering.