Abstract: Disclosed is a method and system for realizing rapid degradation of halogenated organic pollutants in water. The system comprises a hydrodehalogenation reactor, an advanced oxidation reactor, a hydrogen gas supply unit and a control unit. The method comprises: 1) introducing a palladium salt into the hydrodehalogenation reactor and the advanced oxidation reactor, and reducing and loading palladium onto the surfaces of membrane modules; 2) introducing a wastewater containing the halogenated organic pollutants into the hydrodehalogenation reactor, and subjecting the halogenated pollutants to hydrodehalogenation with palladium catalysis; 3) introducing the dehalogenated wastewater into the advanced oxidation reactor, and adding a persulfate into the second reactor body.

Abstract: 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.

Abstract: The present invention belongs to the field of treatment of urban organic wastes, and specifically relates to a high-value treatment system or method for urban wet garbage. According to the present invention, through the steps such as oil extraction, high-efficiency hydrolysis, high-value biological conversion, simultaneous recovery of released nitrogen and phosphorus and deep utilization of residues, urban wet garbage is converted into acetic acid by high-value treatment, produced by-products including carbon dioxide and hydrogen are biologically converted into acetic acid, released nitrogen and phosphorus are recycled into slow-release fertilizers, and solid residues are used to prepare materials capable of promoting conversion of the wet garbage into acetic acid through high-value treatment. According to the present invention, not only can high-value treatment of the urban wet garbage be realized, but also produced waste gases and waste residues are recycled.

Abstract: 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.

Abstract: The present invention provides a method of reducing and controlling a hazardous substance in a process of high-value biological conversion of an urban organic waste. The method includes: 1) mixing a sludge, a first urban organic waste and an organic acid with water for acclimation to obtain an acclimatized sludge; 2) stage 1 of biological conversion: mixing the acclimatized sludge with a second urban organic waste to perform anaerobic culture; 3) stage 2 of biological conversion: adding nitrate and bacteria to continue anaerobic culture so as to obtain an organic acid. In the present invention, sludge microbes are acclimatized and then added to high-value chemicals such as acetic acid, propanoic acid and lactic acid prepared in biological conversion of the urban organic waste and then added with bacteria. Thus, by controlling pH value, microbe addition amount and nitrate concentration, the unfavorable effect of the antibiotics and heavy metal ions.

Abstract: The invention relates to the technical field of environmental protection, in particular to a method for evaluating carbon source quality of a water body, an apparatus, a device and a readable storage medium. The invention provides a method for evaluating carbon source quality of a water body, including: acquiring COD and BOD5 of a first water body, wherein the first water body is a water body obtained after a water body to be measured is subjected to filtration treatment; acquiring an energy matter content in microbial cells in a second water body, wherein the second water body is a water body obtained after the first water body is subjected to anaerobic-aerobic treatment; and determining the carbon source quality of the water body to be measured according to a ratio of COD to BOD5 in the first water body and the energy matter content in the microbial cells in the second water body.

Abstract: A method for treating organic wastewater includes: proceeding with anaerobic fermentation on organic wastewater to obtain a fermentation liquid; nitrifying a portion of the fermentation liquid to obtain a first fermentation liquid containing nitrate nitrogen, and separating the remaining portion of the fermentation liquid to obtain a second fermentation liquid containing propionic acid; mixing the first and second fermentation liquids to obtain a mixture; and removing nitrogen and phosphorus from the mixture and then proceeding with sedimentation to obtain a sediment and a supernatant discharged as purified water. An organic wastewater treating system includes an anaerobic fermentation reactor, an aeration tank, a fermentation liquid separating equipment, a biological removal reactor for removing nitrogen and phosphorus, and a sedimentation tank.

Abstract: A method for treating organic wastewater includes: proceeding with anaerobic fermentation on organic wastewater to obtain a fermentation liquid; nitrifying a portion of the fermentation liquid to obtain a first fermentation liquid containing nitrate nitrogen, and separating the remaining portion of the fermentation liquid to obtain a second fermentation liquid containing propionic acid; mixing the first and second fermentation liquids to obtain a mixture; and removing nitrogen and phosphorus from the mixture and then proceeding with sedimentation to obtain a sediment and a supernatant discharged as purified water. An organic wastewater treating system includes an anaerobic fermentation reactor, an aeration tank, a fermentation liquid separating equipment, a biological removal reactor for removing nitrogen and phosphorus, and a sedimentation tank.

Abstract: Disclosed is a method for improving biological production of hydrogen from protein-containing wastewater comprising two stages: ultraviolet radiation pretreatment of protein-containing wastewater and biological production of hydrogen under a neutral pH condition and intermediate temperature condition.

Abstract: A method for reducing release of resistance genes during sludge anaerobic treatment includes controlling concentration of to-be-treated sludge in a concentration tank to be 12-20 g/L by sedimentation under gravity. The concentrated sludge is transferred to a supersonic pre-treatment device to proceed with supersonic pre-treatment. The supersonic pre-treatment is conducted for 5-30 minutes at a power of 0.1-0.5 kW and a frequency of 10-40 kHz. The pre-treated sludge is then transferred to an anaerobic treatment device for anaerobic treatment. The anaerobic treatment is conducted for 4-12 days at a temperature of 20-37° C. The release amount of resistance genes in the residual sludge and the supernatant liquid in the anaerobic treatment device is detected. A feedback dosage of an alkali liquid is fed into the anaerobic treatment device according to the release amount of the resistance genes, controlling a pH value to be 9.0-11.0 during the anaerobic treatment.

Abstract: A method for reducing release of resistance genes during sludge anaerobic treatment includes controlling concentration of to-be-treated sludge in a concentration tank to be 12-20 g/L by sedimentation under gravity. The concentrated sludge is transferred to a supersonic pre-treatment device to proceed with supersonic pre-treatment. The supersonic pre-treatment is conducted for 5-30 minutes at a power of 0.1-0.5 kW and a frequency of 10-40 kHz. The pre-treated sludge is then transferred to an anaerobic treatment device for anaerobic treatment. The anaerobic treatment is conducted for 4-12 days at a temperature of 20-37° C. The release amount of resistance genes in the residual sludge and the supernatant liquid in the anaerobic treatment device is detected. A feedback dosage of an alkali liquid is fed into the anaerobic treatment device according to the release amount of the resistance genes, controlling a pH value to be 9.0-11.0 during the anaerobic treatment.

Abstract: Disclosed is a method for preparing short-chain fatty acids having high propanoic acid content, comprising: mix sludge and kitchen wastes for pre-fermentation to produce substrates required for synthesis of propionic acid, and then add propionibacterium to conduct anaerobic continuous fermentation, content of propionic acid in the final fermentation broth is as high as 71.2% of the total acid.

Abstract: Disclosed is a method for improving biological production of hydrogen from protein-containing wastewater comprising two stages: ultraviolet radiation pretreatment of protein-containing wastewater and biological production of hydrogen under a neutral pH condition and intermediate temperature condition.

Abstract: Disclosed is a method for biological denitrification of water body polluted by nitrates using sustained-release solid carbon sources comprising the following steps: add cassava lees into water body polluted by nitrates for denitrification of the waste water, It can achieve the purpose of biological nitrogen removal through slowly releasing organic carbons as carbon sources for microbial denitrification in the water by cassava lees and the cassava lees losing the carbon-releasing function can be naturally degraded in the environment without causing secondary pollution.

Abstract: Provided is a method for facilitating generation of hydrogen by photosynthetic bacteria with organic wastewater by nano titania, comprising the following specific step: (1) adding organic wastewater to a photosynthetic reactor; (2) adding hydrogen generating photosynthetic bacteria to the photosynthetic reactor; (3) adding nano titania to the photosynthetic reactor; and (4) adjusting the pH value and temperature in the reactor, and collecting gas.