A method for achieving rapid startup of a denitrification biofilter tank, which belongs to the technical field of biofilm sewage treatment. The specific steps are: 1. selecting heterotrophic denitrification or mixotrophic denitrification to treat influent sewage; 2. when the heterotrophic denitrification is used, pretreating the filter material with sodium carboxymethyl cellulose solution and then adding rhamnolipid after the introduction of sewage until the biofilter tank system starts successfully; 3. when the mixotrophic denitrification method is used, the filter tank is inoculated after the introduction of sewage, and the rhamnolipid is added thereto and is changed to sulfur source after operation for a while until startup is complete. The invention solves the problem that the denitrification biofilter tank in the sewage treatment is particularly slow in the mixotrophic state, and has a good application prospect.

Various embodiments relate to denitrification of water using bacteria. A method of denitrification of water includes deoxygenated water including a water-soluble form of nitrogen. The method includes exposing the deoxygenated water to denitrifying bacteria to convert the water-soluble form of nitrogen in the water to nitrogen gas that is removed and to form a denitrified water. The method also includes reoxygenating the denitrified water. Denitrifying bacterial substrates and methods of making the same are also provided.

Methods and systems for sequestering carbon dioxide and growing algae can include: producing fluids from a subsurface formation; separating the fluids into hydrocarbons and produced water; transferring the produced water to a treatment pond; transferring the hydrocarbons to a gas fractionation plant; separating the hydrocarbons resulting in a carbon dioxide side stream; and discharging the carbon dioxide side stream into the treatment pond.

Techniques of decontaminating environments polluted with petroleum-related materials through the use of microbes have problems associated with difficulty in construction that requires high-pressure injection deep in the ground, due to low pressure resistance of any of the conventional microbes. In many cases, the survival of the microbes is influenced by temperatures, etc. of the environments and disadvantageously requires extreme caution in conditions of preservation or the environments (temperature, pressure, pH, etc.) for use. A microbe having resistance to even high temperatures or high pressures while having excellent ability to degrade petroleum-related materials has been obtained. As a result, the present invention provides a bioremediation technique, particularly, a bioaugmentation technique, which employs an organism resistant to environmental loads such as temperature, pH, and pressure, is highly useful, and utilizes the excellent ability to degrade petroleum-related materials.

The present invention relates to a booster composition for enhancing the biogas yield and stabilizing the operation of a biomethanation plant, a method for the preparation of said booster composition and a method for enhancing the biogas yield and stabilizing the operation of a biomethanation plant using said composition by ameliorating the effect of shock conditions like pH and temperature. The booster composition comprises of specifically defined constituents selected from controlled release agents, redox potential balancers, direct interspecies electron transfer (DIET) improvers, micronutrient balancers, and Co-factors.

The present application relates to the technical field of water environment governance, and particularly discloses a method for accurate positioning and in-situ treatment of pollutants at a sediment-water interface. In the method, high-throughput sequencing technology and pollutant source apportionment technology are firstly used to perform accurate positioning on the sediment to be controlled, and then electrodialysis-vacuum negative pressure dewatering technology is used to perform in-situ dewatering treatment on the sediment to be controlled, thereby realizing accurate governance with the minimum desilting amount. In the present application, in further cooperation with the application of microbial reagents, the microbial flora environment of the sediment-water interface is regulated, thereby increasing the dewatering speed of the sediment.

A method for intensification of advanced biological nitrogen removal and reduction of endocrine disrupting toxicity, and belongs to the technical field of advanced wastewater treatment includes the steps of utilizing the reaction of calcium sulfate and hydrogen peroxide solution under alkaline conditions to prepare nano-calcium peroxide (n-CP) oxygen-releasing materials, then the polyvinyl alcohol is used as a framework material, the sodium carboxymethyl cellulose is used as a bonding agent, the stearic acid is used as buffering agent and stabilizing agent, the prepared n-CP is used as an oxygen-releasing material, and the quartz sand is used to increase the material density to the sustained-release calcium peroxide nanoparticles (SR-nCPs) through the encapsulation method.

The present development is a method for producing a high concentration free amino acid soy hydrolysate composition and a method for using the resulting hydrolysate composition. The high concentration free amino acid soy hydrolysate is used to enhance the microbe population found in soil and wastewater. The enhanced microbe population can promote plant growth, particularly for use in brownfields and similar reclamation sites or on turf grasses, and can promote the digestion of sewage solids.

The present disclosure is related to systems and methods for the biological processing of hydrocarbon-containing substances. In particular embodiments, the systems and methods herein relate to pre-digestion of hydrocarbon containing substances and further processing of the same to produce hydrocarbon fuels, fertilizer, and other products.

The invention relates to a method for aerobic and anaerobic cultivation of microorganisms. The invention also relates to a method for producing a preparation for cleaning radioactive liquids and radioactively charged surfaces. Likewise, the invention further relates to a method for cleaning radioactive liquids and radioactively charged surfaces.