12 results about "High nitrogen" patented technology

A kind of high nitrogen-containing phosphorus wastewater treatment system, including pH adjusting pool, primary reaction pool, sedimentation tank, secondary reaction pool, air floatation tank, filter tank, electrochemical reaction tank and clear water tank in series in proper order;The electrochemical reaction tank includes electrochemical device, electrochemical device is assembled by multiple independent box, it is arranged in a row in the form of '' one '' character, the cavity in each box forms a reaction chamber, and the connecting side of adjacent box is equipped with communicating port, after sealing connection of adjacent box, communicating port of adjacent box is interconnected, and exchange membrane is installed between the communicating port of adjacent box.This utility model directly degrades organic pollutants by electrode reaction, long-term operation cost is lower than traditional technology, achieves the simultaneous recycling of nitrogen and phosphorus, and helps to realize the sustainable development and resource recovery of wastewater treatment.

The present application relates to sewage treatment device technical field, especially to a kind of sludge landfill pit high nitrogen pollution leachate's enhanced denitrification method. First, mesh cover box and related biological gel particles are placed on the float, and the denitrification device is prepared;Second, the water body is introduced and the biological denitrification process is realized by propeller and steering mechanism. Then, according to the water quality, the denitrification area is automatically adjusted, and the denitrification effect is optimized. Finally, through the solar power generation and driving control steps, the device is energy self-sufficient, and the driving route and speed are controlled by the central processing unit, to maximize the denitrification efficiency. The present application closely combines short-cut nitrification and anaerobic ammonia oxidation, and uses the small unit structure of the capsule to realize the way that short-cut nitrification and anaerobic ammonia oxidation can be directly coupled in wastewater treatment. The contribution ratio of short-cut nitrification and anaerobic ammonia oxidation can be automatically adjusted according to the proportion of ammonia nitrogen and nitrite nitrogen in the water body. The present application has the advantages of remote operation, no need for external carbon source, saving oxygen supply energy consumption, high denitrification efficiency, no need for sludge discharge, strong adaptability, etc., and achieves the effect of pollution reduction and carbon reduction.

This invention relates to a method for treating high-concentration inorganic nitrogen wastewater using a mixed culture of *Paragonimus* strains wg2 and wg1, belonging to the field of resource and environmental microbiology. This invention utilizes the co-culture of strains wg2 and wg1 to treat simulated wastewater, primarily exploring the effect of the mixed strains wg2 and wg1 on NO2 under anoxic conditions. ‑ -N, NO3 ‑ The study investigated the nitrogen removal capacity of nitrite-nitrogen (N), the optimal ratio of mixed bacteria, and the nitrogen removal performance of the mixed bacteria in treating simulated wastewater. Results showed that *Paragonimus* strains wg2 and wg1 acted synergistically in a mixed culture system, effectively addressing both nitrite accumulation and efficient nitrate degradation, demonstrating high nitrogen removal capacity. This study provides important practical guidance for the development of biological nitrogen-removing agents that simultaneously remove nitrite and nitrate.

The invention relates to a bacillus altitudinis ZT61 (bacillus altitudinis ZT61) with an aerobic denitrifying and phosphorus accumulating function and application of the bacillus altitudinis ZT61 in treatment of wastewater with high nitrogen content and phosphorus content. The strain has the capability of synchronously removing ammonia nitrogen and phosphorus, can finally convert nitrogen pollutants into gas products, is suitable for treating high-nitrogen-content organic wastewater, has obvious environmental adaptability and interspecific competitive advantages, can efficiently grow at 15-35 DEG C, and can remove nitrogen and phosphorus. Compared with a traditional denitrification process, the strain is high in denitrification efficiency, low in energy consumption, simple to operate and high in stability, and application of the strain provides a certain basis for sewage treatment.

This invention provides an animal feed prepared using microbial fermentation products and its preparation method. By constructing a symbiotic community of anaerobic ammonia-oxidizing bacteria and Clostridium butyricum, and combining it with livestock and poultry manure biochar as a fixation carrier and a complex enzyme system, the protein degradation and nitrogen emission control of ruminant feed are optimized. This method degrades crude protein into small peptides through anaerobic fermentation, while simultaneously converting ammonia nitrogen into nitrogen gas, effectively reducing ammonia emissions by 70%-80%. Furthermore, the use of high-temperature activated biochar as a fixation carrier improves the colonization rate and stability of the microbial community. This invention not only improves the nutrient utilization rate of feed but also solves the problems of high nitrogen emissions and low fiber utilization in traditional feeds, providing a novel solution for low-nitrogen, environmentally friendly ruminant feed.

The application discloses a kind of processing high-flow high nitrogen-containing waste gas incinerator and method, the incinerator includes: burner, for providing stable heat source for incinerator;Incinerator, for providing incineration space and denitration space for waste gas incineration, ensure that waste gas is mixed in incinerator, toxic and harmful gas is completely destroyed, and carries out reduction reaction of nitrogen reduction, reduces the NO x Emission concentration, realize the continuous stable efficient treatment of high-flow high nitrogen-containing organic waste gas.The scheme disclosed by the application adopts mature, advanced and reasonable incineration technology, which can efficiently treat high nitrogen-containing waste gas, ensure complete decomposition of harmful substances, and minimize secondary pollution of NO x , Achieve the effect of energy saving, cost saving and pollution reduction.

The application discloses a strong alkali-resistant aerobic denitrification granular sludge cultivation method and device. The method solves the problems of low treatment efficiency, complex operation condition, high operation cost, and difficulty of traditional aerobic denitrification bacteria in gathering in a reactor when a conventional biological denitrification process is used to treat strong alkali high-concentration nitric acid nitrogen wastewater. The strong alkali-resistant aerobic denitrification granular sludge has the characteristics of high nitric acid nitrogen removal efficiency, simple operation, high nitrogen removal efficiency, low operation cost, low capital cost, and stable treatment effect.

Systems and methods for processing liquefied natural gas (LNG) can include an LNG production system with a methane refrigeration cycle downstream from an ethylene refrigeration cycle. The methane refrigeration cycle can be a closed loop methane refrigeration cycle that maintains a methane refrigerant separate from a natural gas feed, (e.g., compared to an open loop methane refrigeration cycle that extracts the methane refrigerant from the natural gas feed and recombines the methane refrigerant with the natural gas feed). The natural gas feed can be a medium or high nitrogen gas feed having a nitrogen content greater than 1.0% molarity.

This invention discloses a method for treating high-nitrate nitrogen wastewater using traditional Chinese medicine (TCM) wastewater as a carbon source, belonging to the field of wastewater treatment technology. This invention adds TCM wastewater as the sole external carbon source to high-nitrate nitrogen wastewater, followed by the addition of denitrifying sludge. Under anoxic or anaerobic conditions, denitrification occurs, achieving a total nitrogen removal rate of over 95%. Compared to traditional carbon sources (such as sodium acetate and ethanol), this invention offers advantages such as low or even negative cost, high nitrogen treatment load, high nitrogen removal efficiency, and more thorough denitrification. In this method, TCM wastewater not only serves as a highly efficient carbon source but also enhances the denitrification performance of microorganisms and the stability of the system. This invention achieves the synergistic treatment of TCM wastewater resource utilization and wastewater denitrification, resulting in significant environmental and economic benefits and meeting the requirements of green circular economy development.

The utility model belongs to wastewater treatment technical field, especially suitable for high nitrogen phosphorus sewage's high -efficient denitrification and phosphorus removal device of high nitrogen phosphorus, it solves the problem of unable to realize resource recovery. The high -efficient denitrification and phosphorus removal device suitable for high nitrogen phosphorus sewage, include: pretreatment pool, be used for filtering suspended impurities in wastewater, anoxic pool is connected with the effluent of pretreatment pool, is used for denitrification, anaerobic tank is connected with the effluent of anoxic pool, is used for release phosphorus, aerobic tank is connected with the effluent of anaerobic tank, is used for nitrification reaction and phosphorus absorption, and its effluent is connected to anoxic pool through reflux pipe, sedimentation tank is connected with the sludge outlet of aerobic tank, is used for mud -water separation, and the sludge outlet is connected with anaerobic tank through reflux pipe, phosphorus recovery tank is connected with the supernatant outlet of sedimentation tank, is used for getting the precipitated guano through adding magnesium source, and the mixed liquid containing guano is discharged through final discharge port. The effect that phosphorus is recycled in the form of guano is realized, and it is favorable for improving economy.

This invention discloses a high-nitrogen-doped coconut shell activated carbon, its preparation method, and its applications. The preparation method includes: crushing and sieving coconut shell carbonized material to obtain carbonized material powder; subjecting the carbonized material powder to plasma surface pretreatment in an air atmosphere; dispersing the plasma-pretreated carbonized material in water and adding a polyamine reagent for reflux reaction to obtain nitrogen-doped carbonized material; mixing the nitrogen-doped carbonized material with a eutectic salt for gradient activation treatment; and then washing, acid washing, water washing, and drying the activated product to obtain high-nitrogen-doped coconut shell activated carbon. The preparation method of this invention has high nitrogen doping efficiency, mild activation conditions, is energy-saving and environmentally friendly, and can achieve synergistic optimization of the pore size and nitrogen doping of biomass activated carbon. The resulting activated carbon has both high nitrogen content and high specific surface area, and exhibits excellent CO2 adsorption performance.