A method and system comprising use of chlorine dioxide to alter the particle size distribution and facilitate removal of water from wastewater, for example sludge or biosolids. The method uses chlorine dioxide to alter the rheology of the wastewater to improve the efficiency of drying the wastewater, to meet regulatory standards for beneficial use or energy production.

A method and system comprising use of chlorine dioxide to alter the particle size distribution and facilitate removal of water from wastewater, for example sludge or biosolids. The method uses chlorine dioxide to alter the rheology of the wastewater to improve the efficiency of drying the wastewater, to meet regulatory standards for beneficial use or energy production.

A wastewater treatment system includes a contact tank having a first inlet configured to receive wastewater to be treated, a second inlet configured to receive activated sludge, and an outlet, a dissolved air flotation unit having an inlet in fluid communication with the outlet of the contact tank, a biological treatment unit having a first inlet in fluid communication with an effluent outlet of the dissolved air flotation unit and an outlet, an anaerobic digester having an inlet and an outlet, a floated solids conduit providing fluid communication between the solids outlet of the dissolved air flotation unit and the inlet of the anaerobic digester, and a thickener having an inlet in fluid communication with the outlet of the anaerobic digester, a first outlet in fluid communication with the inlet of the anaerobic digester, and a second outlet.

A waste management system comprises a fuel cell to generate electricity, thermal energy and water. The waste management system further comprises a waste treatment system operatively coupled to the fuel cell, the waste treatment system to utilize the generated electricity to separate wastewater into solid waste and water.

A large-scale fluidized bed biogasifier provided for gasifying biosolids. The biogasifier includes a reactor vessel with a pipe distributor and at least two fuel feed inlets for feeding biosolids into the reactor vessel at a desired fuel feed rate of more than 40 tons per day with an average of about 100 tons per day during steady-state operation of the biogasifier. A fluidized bed in the base of the reactor vessel has a cross-sectional area that is proportional to at least the targeted fuel feed rate such that the superficial velocity of gas is in the range of 0.1 m/s (0.33 ft/s) to 3 m/s (9.84 ft/s). In operation, biosolids are heated inside the fluidized bed reactor to a temperature range between 900 F. (482.2 C.) and 1600 F. (871.1 C.).

An effluent collector includes a filtrate receiving portion having a filtrate opening, and a pressate receiving portion having a pressate opening. The effluent collector includes a diverter barrier adjustably positioned above the pressate receiving portion. The diverter barrier is configured to adjustably direct at least a portion of a flow path toward or away from the pressate receiving portion.

Provided is a filtration system and process that enhances mineral removal from sludge through a novel recirculation and mixing apparatus. In one example, the system may include a filter configured to remove minerals from sludge, a pump configured to move the sludge towards the filter, a pre-filtering system configured to add an agent into the sludge prior to the sludge making contact with the filter, a drainage collection system including one ore more reservoirs configured to collect water drained during and/or after the filtering and feedback the drained water to the pump, and valving configured configured to mix the drained water with the sludge to generate a mixture which is moved by the pump towards the filter.

Provided is a filtration system and process that enhances mineral removal from sludge through a novel recirculation and mixing apparatus. In one example, the system may include a filter configured to remove minerals from sludge, a pump configured to move the sludge towards the filter, a pre-filtering system configured to add an agent into the sludge prior to the sludge making contact with the filter, a drainage collection system including one ore more reservoirs configured to collect water drained during and/or after the filtering and feedback the drained water to the pump, and valving configured configured to mix the drained water with the sludge to generate a mixture which is moved by the pump towards the filter.

The invention discloses a waste water filtering garbage drying apparatus, comprising a main body, a feeding inlet is fixed on an upper end surface of the main body, and a drying device is arranged on a lower side of the feeding opening, and the drying device can be used by the drying device The garbage entering the feed inlet is subjected to the first step of dry dewatering, and the lower side of the drying device is provided with a gate device. The present invention adopts a multi-stage drying method, and firstly dehydrates the garbage to remove a large amount of water, and then In the purpose of drying the remaining moisture by heating and taking away the moisture through the air flow, the overall footprint of the device is small, no large number of people are involved, the drying speed is fast, the drying effect is good, the working efficiency is improved, and the weather is not affected by the rainy weather. Can work at any time.

The invention discloses a waste water filtering garbage drying apparatus, comprising a main body, a feeding inlet is fixed on an upper end surface of the main body, and a drying device is arranged on a lower side of the feeding opening, and the drying device can be used by the drying device The garbage entering the feed inlet is subjected to the first step of dry dewatering, and the lower side of the drying device is provided with a gate device. The present invention adopts a multi-stage drying method, and firstly dehydrates the garbage to remove a large amount of water, and then In the purpose of drying the remaining moisture by heating and taking away the moisture through the air flow, the overall footprint of the device is small, no large number of people are involved, the drying speed is fast, the drying effect is good, the working efficiency is improved, and the weather is not affected by the rainy weather. Can work at any time.