632 results about "Aerobic bacteria" patented technology

Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives. Devices, systems, and methods are provided that allow economical conversion and in many instances, alleviate the production and release of undesirable gases such as sulfide and ammonia. In one embodiment, undesirable anaerobic and facultative anaerobic bacteria are killed at a greater rate than desirable soil compatible aerobic bacteria. The use of low temperature killing diminishes off gassing commonly associated with other techniques, and the use of gas trapping additives such as zeolites provides enhanced soil building qualities such as slow release of nitrogen and slow release of moisture to soil. The methods allow convenient adjustment of composition, allowing conversion of waste into tailored designer fertilizer suited for particular soils. Other embodiments provide other soil building qualities as well as nutrient qualities for feedstock used in animal husbandry such as aquaculture.

A meat treatment method and apparatus for handling, storage, transportation and sale of meat exposes the meat to a controlled gas environment. This environment includes oxygen under pressure in excess of atmospheric wherein the meat is exposed for a predetermined period of time. The method may also includes the step of pre-treating the meat in a substantially anaerobic environment for a sufficient time to achieve a predetermined close down of aerobic bacteria on the meat and suspension of most biochemic effects of oxygen on the meat. Subsequently, the method includes the treating of the meat under aerobic conditions including the step of supplying oxygen under pressure. The method also includes the prepackaging of meat in at least partially gas permeable packaging suitable for use in a retail sale environment, prior to aerobic gas pressure treatment. The method improves shelf life and appearance of meat over a traditionally handled product.

A method is provided for preserving live bacteria by subjecting an aqueous system containing the growing bacteria to drying without special equipment, in the presence of trehalose with or without the addition of divalent cations as stabilizing agents. Further, a dried composition for preservation of aerobic bacteria in a viable state is provided. The dried composition consists essentially of dried viable aerobic bacteria and an appropriate growth medium. The bacteria and growth medium are initially placed in an aqueous solution of 10 mM to 200 mM trehalose and a divalent cation, and dried at room temperature.

Compositions having antimicrobial activity contain surface functionalized particles comprising an inorganic copper salt which has low water solubility. These types of inorganic salts may also be introduced in porous particles to yield antimicrobial compositions. The compositions may optionally comprise additional antimicrobial agents, salts with high water solubility, organic acids, salts of organic acids and their esters. The compositions may be added to various fluids used in the petroleum extraction industry, or used as coatings on components used in this industry. These antimicrobial materials may be used for reducing both anaerobic and aerobic bacteria and are also useful for reducing corrosion of ferrous components caused by anaerobic bacteria. Although such compositions may be used for any antimicrobial application, and some of the other important uses of these compositions are in wound care, personal care and waste processing.

The invention discloses straw and pot ale mixed fermented feed and a production method thereof, and relates to the field of environmental science, in particular to the mixed fermented feed and the production method thereof. The production method comprises the following steps: (1) crushing straw, and then mixing pot ale; (2) preparing aerobic fermentation bacteria liquid, uniformly spraying the aerobic fermentation bacteria liquid into materials, adding compound trace elements, and fermenting; (3) preparing anaerobic fermentation bacteria liquid, appropriately adding according to the fermentation situation of the fermented materials, and fermenting; and (4) drying the fermented materials containing water, and then getting the straw and pot ale mixed feed. Aerobic bacteria used in the method are high-efficient cellulose and lignin degrading bacteria, thereby improving the degradation rate of cellulose and lignin, fully utilizing yeast and other microbes in the pot ale to produce single-cell proteins, improving the content of nutrition in the feed, enabling the protein content to be 13-20%, having certain bouquet and acid fragrance and improving the palatability of the feed. The fermentation process is simple to operate, the fermentation time is 7-9 days, and the production time of the feed is shortened.

The invention discloses a preparation method of a biological feed additive with nutrition and immunocompetence. The biological feed additive with nutrition and immunocompetence comprises the following components: 0.05 to 0.1% of aerobic bacteria, 0.05 to 0.1% of anaerobic bacteria, 0.3 to 0.5% of fermenting promoter, 5 to 15% of soybean meal, 5 to 10% of molasses, 15 to 25% of DDGS (Distillers Dried Grains with Soluble), 10 to 30% of cassava residue, 20 to 50% of bran meal, 5 to 15% of bran, 5 to 15% of maize cob powder, and 20 to 40% of maize slurry protein. The preparation method comprises the processes of activating bacteria, crushing raw materials, aerobically fermenting for 1 to 2 days, and then anaerobically fermenting for 3 to 7 days. The prepared biological feed additive brings piglet, medium and large pigs and sheep with high nutrition value, is high in palatability, and has effects of accelerating growth, improving intestinal health, controlling diarrhea, controlling constipation of sow, increasing birth weight and weaning weight of the piglet, improving the quality of eggshell and egg yolk, controlling feed-containing faeces, raising the lactation level of dairy cattle, as well as increasing butterfat and protein content.

The invention relates to the field of wastewater treatment, and relates to a biological degradation method of nitrogen-containing heterocyclic compound wastewater. An oxidation state compound is added in the nitrogen containing heterocyclic compound wastewater, an anaerobic environment is formed by micro aeration, and mixed electron acceptors of dissolved oxygen and the oxidation state compound simultaneously exist in the system; an upflow biological aerated filter is used as a main reaction device, an optimal degradation effect of nitrogen-containing heterocyclic compounds is achieved according to different components and concentrations of the nitrogen-containing heterocyclic compounds, the pH is controlled to 7.0-7.5, the concentration of the dissolved oxygen is controlled to 0.05-0.3 mg / L (water discharged from the upper part of the filter), and the range of the oxidation-reduction potential is controlled to 150-50 mv; under an anaerobic aeration condition, with the nitrogen-containing heterocyclic compounds as electron donors and oxygen and oxygen-containing compounds as electron acceptors, under the combined effects of micro aerobic bacteria, facultative anaerobic bacteria, aerobic / anoxic denitrifying bacteria and the like, the nitrogen-containing heterocyclic compounds are completely degraded into carbon dioxide and water.

The invention relates to a method for fermentation production of a poultry bacterial agent by multi-bacteria miscible liquid, wherein aerobic bacteria, namely Bacillus subtilis, Bacillus licheniformis, bacillus natto, beer yeast, Aspergillus niger and Aspergillus oryzae are cultured in a shaking table according to different culture mediums, so as to culture a mother seed solution; simultaneously Lactobacillus acidophilus, bifidobacteria and enterococcus faecalis are subjected to anaerobic culture by utilization of Kille flasks, and a mother bacterial solution of photosynthetic bacteria is cultured by a Kille flask under the condition of illumination; the prior stock solution is inoculated into a seed tank for anaerobic culture and fermentation according to 4 percent of the inoculum concentration, and the fermentation time is between 48 and 60 hours; and the cultured seed liquid is inoculated into a productive tank for anaerobic culture and fermentation according to 10 percent of the inoculum concentration, the fermentation time is between 60 and 72 hours, and the fermentation end point is reached when the pH value is reduced to 4.0. The method has the advantages that the microscopic examination viable count of the bacterial agent is more than 5 billion per milliliter, so that the bacterial agent is safe and nontoxic, thereby not only improving the disease resistance of poultry but also promoting the quick growth of the poultry, reducing the feed-meat ratio and improving the quality of meat, eggs and milk.

The invention relates to improvement on an imidacloprid pesticide wastewater treatment method. The imidacloprid pesticide wastewater treatment method is characterized by comprising the following steps of: performing physical and chemical pretreatment, namely performing chemical phosphorus removal and ferrum-carbon (Fe-C) micro-electrolysis sequentially and then performing Fenton oxidation and catalytic oxidation respectively; and performing biochemical treatment, namely performing aerobic biochemical treatment in the presence of salt-tolerant aerobic bacteria. By the imidacloprid pesticide wastewater treatment method, the total physical and chemical treatment effect is greatly improved; physical and chemical pretreatment can be performed at normal temperature and normal pressure; organic matters difficult to biochemically degrade is degraded and the biochemical property of the wastewater is improved under the condition of low cost; the dilution factor of the wastewater is greatly reduced; and the using amount of diluting water is reduced by 50 to 80 percent, so that the treatment is more economic. The imidacloprid pesticide wastewater treatment method is simple in pretreatment method, mild and stable in process reaction condition, simple in operation (for example, the catalytic oxidation can be performed at normal temperature and normal pressure and a catalyst can be recycled), low in operating cost, good in treatment effect, low in the using amount of the diluting water during the subsequent biochemical treatment and low in total treatment cost, and the water from the biochemical treatment can reach a national level 1 of discharge standard.

A formulation comprising molecular arrangements capable of penetrating pores in a barrier, owing to penetrant adaptability, despite the fact that the average diameter of said pores is smaller than the average penetrant diameter, provided that the prenetrants can transport agents or else enable agent permeation through the pores after penetrants have entered pores, characterized in that the formulation comprises at least one consistency builder in an amount that increases the formulation to maximally 5 Nm / s so that spreading over, and retention at, the application area is enabled and / or at least one antioxidant in an amount that reduces the increase of oxidation index to less than 100% per 6 months and / or at least one microbiocide in an amount that reduces the bacterial count of 1 million germs added per g of total mass of the formulation to less than 100 in the case of aerobic bacteria, to less than 10 in the case of entero-bacteria, and to less than 1 in the case of Pseudomonas aeruginosa or Staphilococcus aureus, after a period of 4 days.

Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives. Devices, systems, and methods are provided that allow economical conversion and in many instances, alleviate the production and release of undesirable gases such as sulfide and ammonia. In one embodiment, undesirable anaerobic and facultative anaerobic bacteria are killed at a greater rate than desirable soil compatible aerobic bacteria. The use of low temperature killing diminishes off gassing commonly associated with other techniques, and the use of gas trapping additives such as zeolites provides enhanced soil building qualities such as slow release of nitrogen and slow release of moisture to soil. The methods allow convenient adjustment of composition, allowing conversion of waste into tailored designer fertilizer suited for particular soils. Other embodiments provide other soil building qualities as well as nutrient qualities for feedstock used in animal husbandry such as aquaculture.

The present invention relates to certain substituted phenyl piperazinyl oxazolidinones, for example, to those having the structure of Formula I with the variables as defined within, and to processes for the synthesis of the same. This invention also relates to pharmaceutical compositions containing the compounds of the present invention as antimicrobials. The compounds are useful antimicrobial agents, effective against a number of human and veterinary pathogens, including gram-positive aerobic bacteria such as multiply-resistant staphylococci, streptococci and enterococci as well as anaerobic organisms such as Bacterioides spp. and Clostridia spp. species, and acid fast organisms such as Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium spp.

The invention relates to the biological treatment for oil extraction wastewater, which in detail relates to a bacterial agent for treating thick oil wastewater and the method for preparing the same. The comprised components and their proportion by weight are as follows: pseudomonas aeruginosa 5-10%, bacillus subtilis 10-15%, lichen bacilli 5- 15%, Citrobacter propionate tumefaciens 10- 15%, liquid gold tumefaciens 10- 20%, annular gemma bacillus 5- 10%, wilting Bacillus pumilus 5- 10%, spherical arthrobacter 5- 10%, crabstick tumefaciens 5- 10%, and hot ground anaerobic rod baceria 10- 15%. It is prepared by activating bacteria, shake-flask culturing, expanding propagating and mixing. The cooperation action is strong, the biological surface activating agent generating- bacteria can enlarge the dissolution of hydrocarbon petroleum in water and make it is easier for hydrocarbon petroleum to contact with bacteria; the anaerobic bacteria can improve the biodegradation of thick oil wastewater; the degradation perfomace of aerobic bacteria is good and suitable for biological treatment for thick oil wastewater.

The invention discloses a method for preparing a fertilizer by utilizing plant waste slag and the biological fertilizer prepared by the method, wherein the biological fertilizer is prepared by uniformly mixing the plant waste slag, organic wastes, salts, carbamide, thermophilic aerobic biological bacteria, adding the mixture into a fermentation tank for dehydrating and crushing after thermophilicfermentation. Compared with prior art, the method using thermophilic aerobic bacteria as production strains, overcomes long deodorization process in current traditional biofertilizer production and control difficulty in technique, and has the advantages of simple industrial process, short preparation time and low cost. The method is especially suitable for recycling the waste slag in Chinese medicine production, decreases pollution on environment, and achieves the purpose for turning rubbish into treasure. The prepared fertilizer is quick release and slow release, contains more than 60% of organic matters, and riches in nitrogen, phosphorus, potassium, crude protein, pure protein, amino acid, kinds of vitamins and trace elements.

The invention relates to a method and fluidized bed for purifying eutrophic water by using microorganism filler. The method for purifying the eutrophic water by using the microorganism filler comprises the following steps: (a) immobilizing anaerobic bacteria in a material by using an embedding method to form filler particles of which the particle size is 5mm to 10mm; (b) coating the outer layers of the particles with mixed facultative aerobe and aerobic bacteria by virtue of chitosan so as to prepare layered and immobilized microorganism filler for purifying water, wherein the particle size of the microorganism filler is 15mm to 20mm; (c) putting the microorganism filler into a microorganism fluidized bed and fixing the fluidized bed at the tail part of a pleasure boat or close to flowing water so that the flowing water flows through the microorganism filler in the fluidized bed and the microorganism filler can be used for removing organic matters, nitrogen and phosphorus out of the eutrophic water body. Therefore, the utilization rate of oxygen, the mass transfer efficiency of organic pollutants in the water and the like are greatly improved; in addition, aged biological membranes can easily fall off from the surface of the filler, so that the membranes are renewed conveniently and the activity of the membranes is maintained.

The invention discloses a method for using waste molasses of sugar factory to produce biological leaf fertilizer, which comprises disinfecting a fermentation vessel via boiled water, boiling waste molasses to kill bacterials and grafting microbe strains as aerobic bacteria, yeast and actinomycetes at 35DEG, preparing fermentation materials as 20-30kg of waste molasses, 0.3-1kg of grafting microbe and 20-30kg of sterile water, arranging the fermentation material into a fermentation vessel, mixing uniformly via a disinfection rod, covering 2-3 gauze layers on the mouth of the vessel, culturing and fermenting, starting aeration each day from the fourth day as 30min at morning and 30min at afternoon until there is dense wine aroma. The invention uses aerobic bacteria, yeast and actinomycetes as grafting microbe strains to process mixed fermentation at suitable temperature, facultative and aerobic conditions to convert organics as sugar into useful compositions as glucose, alcohol, amino acid, nucleic acid and vitamin B.

The invention belongs to the technical field of sewage treatment, and discloses an MABR-MBR combined type sewage treatment device. The device comprises a pre-treatment unit, an MABR unit, an MBR unit and a backflushing unit matched with the MBR unit, wherein the four units are arranged along a sewage flowing direction. The invention further discloses a control method thereof. The effect of removing nitrogen and phosphorous is well realized through the sufficient combination of advantages of two membrane reactors. Since the bubbleless aeration is adopted in an MABR pond, the utilization rate of the oxygen is high and nearly can achieve 100%. Since the mass transfer range of the oxygen is small, denitrifying bacteria and denitrifying phosphate-accumulating organism are mainly existent in the water to finish denitrification and phosphorous releasing process of the nitrate, and the performance of removing nitrogen and phosphorous in the next stage is strengthened. After entering an aerobic MBR pond, the aerobic bacteria further remove residual nitrite and ammonia nitrogen, and the aerobic phosphorous-accumulating bacteria finish the phosphorous removal work. Through the previous treatment of the MABR, the volumetric loading of the MBR is reduced.

The invention discloses a normal-temperature starting domestication method for an anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water and relates to the starting domestication method of a reactor. The method aims to solve the problems that starting time of the anaerobic ammoxidation reactor is long, and that the dissolved oxygen in the inflow water brings the adverse effect on the anaerobic ammoxidation process and causes high energy consumption. The method comprises the following steps: 1, culturing a denitrification biomembrane; 2, starting the anaerobic ammoxidation reactor; and, 3, domesticating the anaerobic ammoxidation reactor. The method provided by the invention uses the denitrification biomembrane as the secondary seed sludge and starts the anaerobic ammoxidation reactor within 100d successfully; under the condition that the inflow water contains 1-1.5mg / l of dissolved oxygen, the method provided by the invention can domesticate microflora in which the aerobic bacteria and anaerobic bacteria are co-existing. The method provided by the invention reduces the operation temperature of the anaerobic ammoxidation reactor from 35 DEG C to (19-22) DEG C, and greatly reduces the operation cost; meanwhile, the reactor system still operates stably and realizes high denitrification effect.

The invention discloses a process for purifying and recycling biomass organic wastewater and belongs to the technical field of treatment and recycle of wastewater. The process comprises the following steps: (A) carrying out hydrolysis acidification, i.e. carrying out hydrolysis acidification treatment on the biomass organic wastewater for 2.5 to 5 hours; (B) carrying out anaerobic treatment, i.e. adopting an anaerobic composite reactor the level of which is over three, wherein the inside of the anaerobic composite reactor is provided with a combination body of an upflow anaerobic activated sludge bed and an anaerobic filtering media and filler biological film bed and is also provided with a bionic distributor; (C) carrying out aerobic contact, i.e. adopting an aerobic tank which is internally provided with a combination band of an aerobic filler biological film and aerobic activated sludge so as to purify the wastewater, or carrying out wetland treatment or land treatment, i.e. purifying the wastewater by the physics, materialization, chemistry and biochemistry (anaerobic, facultative and aerobic bacteria, microorganism, animals and plants) composite actions which the wetlands or the lands have. The process of the invention has the advantages of wide application range, small energy consumption, little equipment, low price, simple management, easy operating control and smelling and tasting control, simple and clear scheme design and easy construction and installation and is suitable to carry out treatment and recycle on the wastewater in rural areas and the organic wastewater generated by enterprises using animals and plants as raw materials.

The present invention provides an integrated produced methane denitriding and phosphorus-sulfur eliminating wastewater treating technique and the equipment thereof, the technique comprises leading the wastewater of the mixing water of wastewater and the reflux water into the high speed anaerobic particle sewage reactor from the bottom, and providing oxygen to the inner part of the reactor to keep the micro-aerobic state in the reactor and facilitate that the contaminant in the water is treated by the degradation of the particle sewage sludge. The present invention provides an environment in which the aerobic bacteria, anaerobium and amphimicrobe coexist and the oxidizing reaction and reducing reaction function together, the COD eliminating (producing methane) and denitriding and phosphorus-sulfur eliminating are simultaneously executed in a reactor, the eliminating efficiency of the contaminant is high and the stay time is short.

A wastewater processing and treatment system utilizes aerobic bacteria in two separate compartments to break down and digest waste. The first settling compartment between the trash tank and the mix liquor compartment is non-existent in conventional aerobic units. The first settling compartment allows for settling of heavy particles and keeps floating debris out of the circulating pump that is located in the mix liquor compartment. In the mix liquor compartment, 100% of the liquid is blended with air several times per hour to increase the efficiency and performance of the unit. The pump intakes on the bottom of the mix liquor compartment allow the pump to remove sludge build-up.

The invention discloses a compound raspberry wine provided with a biological effect and a production method thereof. The compound raspberry wine is prepared from the following berries by weight: 30%-35% of red raspberries, 20%-25% of black raspberries, 30%-35% of black mulberries, 5%-10% of black currants and 4%-7% of wolfberries. The production method comprises the following steps: weighing and cleaning the berries; mixing the berries and freezing the berries at a low temperature; filling a fermentation tank with carbon dioxide; heating and coldly soaking the burst mixed berries; fermenting and mixing with sugar; terminating fermentation; naturally subsiding and separating; feeding clarifying agents and separating; removing particle impurities in clarified wine, regulating the concentration of sulfur dioxide and obtaining qualified wine products through a membrane filtering machine. According to the invention, the berry raw materials and weight ratio thereof are reasonably combined, so that not only are the compositions of functional ingredients in the wine products enriched, and the taste characters of the products are improved, but also fermentation berries and wine can be protected from being infected by aerobic bacteria, therefore, the safety of fruits and wine is ensured.

The invention discloses aerobic bacterium-anaerobic bacterium composite microbe liquid inocula and a preparation method thereof. The composite microbe liquid inocula comprise six liquid aerobic microbial agents and four liquid anaerobic microbial agents. The liquid aerobic microbial agents comprise a bacillus megaterium agent, a liquid Azotobacter chroococcum agent, a liquid bacillus mucilaginosus agent, a liquid streptomyces microflavus agent, a liquid bacillus subtilis agent and a liquid bacillus licheniformis agent. The liquid anaerobic microbial agents comprise liquid photosynthetic bacteria, a liquid lactobacillus plantarum agent, a liquid lactobacillus acidophilus agent and a liquid lactobacillus delbrueckii agent. The preparation method comprises culturing six types of aerobic bacteria to obtain six liquid aerobic microbial agents, culturing four types of anaerobic bacteria to obtain four mixed liquid anaerobic microbial agents, and injecting the six liquid aerobic microbial agents into the mixed liquid anaerobic microbial agents to obtain the composite microbe liquid inocula. The composite microbe liquid inocula have a quality guarantee period for one year or more at the normal temperature and have functions of nitrogen fixation, phosphate dissolution, potassium release, disease prevention and soil improvement.

The present invention discloses a two-step fermentation method for efficient production of fermented soybean meal, and belongs to the technical field of solid-state microorganic fermentation. The present invention adopts soybean meal as main raw material and uses an aerobic bacteria-bacillus subtilis with high protease production capacity as a major strain of shallow dish fermentation in the first step. The fermented soybean meal with high protease activity is obtained through an aerobic fermentation for 1-2 days. The shallow dish fermented soybean meal is served as a protease inhibitor-like agent to mix with lactobacillus and other unsterilized soybean meal to conduct the second step-heap fermentation. The present invention not only can meet the requirement of mix fermentation of aerobic and anaerobic bacteria, but also solves the problem that the aerobic bacteria is difficult to apply to solid heap accumulation. The shallow dish fermented soybean meal has a protease activity of higher than 700U / g, and the soybean meal after heap fermentation has a crude protein content of higher than 50% and a small molecule peptide content higher than 10%. The mixed fermentation can improve the palatability of soybean meal for animals, promote digestion and absorption of animals, balance animal intestinal microbial environment and improve animal immunity.

The invention discloses a preparation method of a microorganism organic fertilizer. The preparation method of the microorganism organic fertilizer comprises the following steps: uniformly mixing excrements of livestocks, rice husk and saw dust, regulating the pH value, and preparing a raw material; adding an anaerobic bacteria into the uniformly mixed raw material, and carrying out anaerobic reaction; adding aerobic bacteria into the raw material after the anaerobic reaction is finished, uniformly mixing, and carrying out aerobic reaction, so that the microorganism fertilizer is obtained. The preparation method of the microorganism organic fertilizer has the advantages that dual fermentation is adopted, the total nutrient of the organic matter and the organic fertilizer can be in a good state, soil and the cultivation soil fertility are improved, soil is cured, nutrients are provided for crops, energy and nutriments are provided for soil microorganisms, microbial activities are promoted, and decomposition of the organic matter is sped up; experiments show that radish planted in a vegetable base adopting the microorganism organic fertilizer is crisp with high moisture content of 2-3% and popular in customers; besides, soil after planting is loose, and great benefit on protection of soil and underground water is realized.

The invention provides a method for producing fermented soybean meal by two-step inoculation segmented solid-state fermentation. The method comprises the following steps of: inoculating the mixed bacterial solution obtained by mixing bacillus subtilis solution, candida mycoderma bacteria solution and lactobacillus solution in peeled soybean meal and performing mixed fermentation; and inoculating the lactobacillus solution in the fermented product, mixing, and performing anaerobic fermentation to obtain the fermented soybean meal. The method is capable of meeting the different needs of aerobic bacteria and anaerobic bacteria, can be used for preparing high-quality fermented soybean meal, and is free of chemical additives; due to the various digestive enzymes, organic acids, medium and small molecular proteins (functional peptides), amino acids, vitamins, probiotics and the like generated during the fermentation process, the nutritive value of the soybean meal is greatly increased; the prepared fermented soybean meal contains not less than 16% of soybean peptide, not more than 25mg / g of glycinin, not more than 20mg / g of beta-conglycinin, not less than 3.5% of lactic acid, and not less than 2*10<9> beneficial viable bacteria; and microbial source nutrients are beneficial to the maintenance of intestinal structure and can promote immunologic function and improve animal production performance.

The invention discloses a process for treating tar product wastewater, which can improve the ratio of BOD / COD of the wastewater, reduce the concentration of ammonia thereof and the concentration of volatile phenol, and further lead the wastewater to be recycled or discharged without pollution. The process for treating the tar product wastewater is characterized in that: a. the wastewater which is generated by cleaning is conducted into a primary settling tank to be settled so as to remove the settled impurities; b. the wastewater is conducted into a wastewater circulating pool so as to remove big granular matters, partial suspended matters and partial oil, and reduce the content of COD; c. the wastewater is conducted into a coagulating air floating machine so as to remove the oil, slag, ammonia and nitrogen; d. the wastewater is conducted into an intermediate settling tank to settle the impurities of the coagulating air floating tank and simultaneously regulate the water quality; e. the wastewater is conducted into a hydrolytic acidification tank and the function of an anaerobe is utilized so as to degrade the refractory organic matters with big particles and molecules into biodegradable organic matters with small molecules; f. the wastewater is conducted into a contact oxidation tank, and under the contact oxidation action of aerobic bacteria, through aeration, the organic matters in the wastewater are absorbed and degraded by the aerobic bacteria; and g. the wastewater is recycled or discharged after reaching the standards after being settled by the inclined settling tank and treated by the post-treatment process.