A method including anaerobically biotreating an anaerobic biotreatment feed comprising wastewater to produce an anaerobically biotreated product, and aerobically biotreating an aerobic biotreatment feed comprising wastewater to produce a treated water, wherein the anaerobic biotreatment feed, the aerobic biotreatment feed, or both comprise wastewater from a POSM process. A method including producing, via an incinerator/boiler combination operated without utilizing a refractory lining and via dry technology and, a flue gas and steam from an incinerator feed comprising wastewater, and producing a treated water by biotreating a biotreatment feed comprising wastewater, wherein the incinerator feed, the biotreatment feed, or both comprise wastewater from a POSM process. Systems for carrying out the method are also provided.

A bioprocess comprises regulating pH of trade effluent wastewater, adding and mixing a first bio-additive, adding and mixing a flocculant/coagulant, filtering through a filter device, adding, mixing of a second bio-additive with aeration, and adding and mixing of a third bio-additive with aeration. Treatment can be discontinued or continued by adding and mixing of hydrogen peroxide with aeration, and optionally exposing treated effluent to UV disinfectant. The treated effluent can be recycled or disposed. Compositions of bio-additives 1, 2 and 3 comprise a group of highly selective and effective microorganisms and enzymes that are immobilized on carrier support matrices from a group of alginate, chitosan, polyacrylamides, k-carrageenan and agarose.

A system for wastewater treatment process control comprising a set of measuring means arranged to obtain a dataset, the dataset comprises a plurality of process variables related to a parameter of the wastewater treatment process; a prediction module arranged to receive the dataset and predict the parameter of wastewater treatment process based on a soft sensor; a troubleshooting module arranged to compare the predicted parameter with a predetermined criterion; wherein if the predicted parameter does not satisfy the predetermined criterion; the troubleshooting module is operable to identify at least one process variable from the plurality of process variables which causes the predicted parameter not to satisfy the predetermined criterion and determine whether the identified at least one process variable from the plurality of process variables is controllable. An optimisation module for use in a wastewater treatment system is also disclosed.

A device for treating uranium tailings with microorganism is provided and includes a treatment container, a spray water distribution assembly, a microbial incubator and a first pump. The water is transported from the microbial incubator to the spray water distribution assembly through the first pump, allowing the microorganisms to enter the interior of the uranium tailings in the treatment container. After treatment is completed, the water is collected by the water collection cylinder and sent back to the microbial incubator for recovery, so as to reduce the waste of microorganisms. The even distribution of horizontal spray pipes can evenly spray water containing microorganisms on the uranium tailings in the treatment container, which makes the distribution of microorganisms in the uranium tailings more uniform and can prevent inadequate treatment and improve the treatment efficiency of microorganisms on uranium tailings.

A system may include a reactor, in which an anaerobic environment exists, that includes a slurry of at least contaminated water and a mixed bacterial culture of facultative bacteria and anaerobic bacteria. The mixed bacterial culture may be suspended within the slurry. The contaminated water may include contaminants associated with a non-metal, a metal, or a metalloid. The mixed bacterial culture may react with the contaminated water to reduce or remove the contaminants from the contaminated water to create a treated slurry. The reactor may output the treated slurry. The system may also include a filtration device to receive the treated slurry; remove, from the treated slurry, the mixed bacterial culture and the contaminants, reduced or removed from the contaminated water, to create treated water; and output the treated water. The system may also include an aeration device to add dissolved oxygen to the treated water, and output the treated water. The system may also include a reaction device where iron or aluminum salts are added to remove phosphorous, selenite, arsenate, or other contaminants which adsorb onto iron or aluminum oxyhydroxide solids. The system may also include a filtration device to remove the solids from the water, and output the treated water.

The device (100) for purifying wastewater comprises: a vacuum anaerobic digester (105) comprising:
in the lower part (110), an inlet (115) for wastewater,
in the upper part (120): a weir (125) for treated water comprising a water outlet (130) positioned at a first height (131) starting from the lower part and a biogas outlet (135) positioned at a second height (136) higher than the first height,
a riser column (140) for raising water by suction of the biogas from the lower part to the upper part,
a downer column (141) for bringing down untreated wastewater from the upper part to the lower part and
a vacuum pump (145) connected to the biogas outlet, and
a buffer column (190) configured to receive wastewater.

A device for treating uranium tailings with microorganism is provided and includes a treatment container, a spray water distribution assembly, a microbial incubator and a first pump. The water is transported from the microbial incubator to the spray water distribution assembly through the first pump, allowing the microorganisms to enter the interior of the uranium tailings in the treatment container. After treatment is completed, the water is collected by the water collection cylinder and sent back to the microbial incubator for recovery, so as to reduce the waste of microorganisms. The even distribution of horizontal spray pipes can evenly spray water containing microorganisms on the uranium tailings in the treatment container, which makes the distribution of microorganisms in the uranium tailings more uniform and can prevent inadequate treatment and improve the treatment efficiency of microorganisms on uranium tailings.

An upflow continuous backwash deep bed sand filter (UCBF) having a recycle line for returning carbonaceous denitrifying bacteria attached to biomass to the influent of the UCBF. The recycle line returns the biomass to the treatment process at a location upstream of the upflow continuous backwash filter. Further, a liquid level control unit is provided that reduces fluctuations and significant drop in the liquid level upstream of the upflow continuous backwash filter, thereby avoiding or minimizing flow turbulences, air induction, and undesirable wastewater aeration resulting in the need to dose excessive carbon source to remove dissolved oxygen in the aerated wastewater.

The invention provides an efficient system for treating livestock waste, particularly waste from cattle or pig farming. The new facility and method employ special transfers of slurry streams through ASBR, SBR, and a unique pretreatment reactor, resulting in treated water, quality compost, and biogas.

A membrane separation device includes a separation membrane immersed in water to be treated and an air diffusion device positioned below the separation membrane, and provides treated water that has permeated through the separation membrane while diffusing air from the air diffusion device towards the separation membrane. A target value setting step sets a target value of an amount of diffusion air diffused from the air diffusion device based on a transmembrane pressure difference, and the air diffusion device is controlled such that the amount of the diffusion air becomes the target value. In the target value setting step, an absolute value of a change or a rate of change in the target value for increasing the amount of the air diffusion is set greater than an absolute value of a change or a rate of change in the target value for decreasing the amount of the air diffusion.