The way biochemical treatment of wastewater
(57) Abstract:The method can be used for the purification of waste, geothermal and petroleum water containing organic substances such as phenols, humic substances and other, in the oil, gas and other industries. Waste water is served in a bioreactor filled with loaded with immobilized therein by microorganisms drives water and the adsorbent is granular activated carbon in the amount of 30 to 100 g/l of reactor volume. The temperature of the liquid 20 - 45oS. the Combination in a bioreactor adsorption and biological processes can improve the efficiency of cleaning, this simplifies the process and reduces the capital intensity. 1 C.p. f-crystals. The invention relates to the field of wastewater treatment and can be used for the purification of waste, geothermal and petroleum water containing organic substances such as phenols and humic substances in the oil, gas and other industries.The known method biochemical treatment of wastewater from phenols, based on deep cleaning on carbon filters by sorption on activated carbon and biological regeneration of microorganisms, the x water coming after biological treatment occurs after 12 o'clockThere is also known a method of biochemical treatment of wastewater from phenols , namely, that the sewage water is treated in aerobic conditions immobilizerturning thermophilic microorganisms drives waters and additionally carry out the purification activated carbon at a load of 1.6-2.1 mg by COD and 0.04-0.06 mg BOD per 1 g of coal per day.The disadvantage of this method is the capital intensity and the presence of large production areas.Closest to the proposed to the technical essence and the achieved result is a method of simultaneous adsorption and biological treatment of wastewater, which is achieved through the intensification of biochemical processes in the tank of activated sludge with additives of coal coke in an amount of 5 to 50 g/l .The disadvantage of this method is the high capital and energy intensity due to the use in the tank of activated sludge.The proposed method is that waste, geothermal and petroleum water containing organic substances such as phenols, humic substances, and others , served in a bioreactor, in which the biological is auctore adsorption and biological treatment, geothermal and petroleum waters on the proposed method improves the removal efficiency of BOD and 90%, phenol - 98-100%, humic substances - 70-92%, this simplifies the process and reduces 2 to 3 times the intensity.The preparation of the bioreactor is carried out in two stages.The first stage is the process of creating in the bioreactor immobilized aerobic microorganisms drives the source water. To this end bioreactor filled with load - steklorezami and source water works within 3-5 days in the recirculation mode.The process of forming the biocenosis on stclaire controlled by parameters such as pH, BOD5, content of organic substances (phenols and humic substances). In the absence of treated water of organic substances, for example, phenols, humic substances, the bioreactor is transferred with recirculation at a flow mode and add fractional granular activated carbon in the amount of 30-100 g/l volume of the bioreactor.In the bioreactor provides continuous air flow intensity 2-4 l/l volume of liquid, the cleaning is conducted at a temperature of 20 - 45oC.During biochemical purification assumes saliani is drasti compressed air with a duration of 30-60 minutesThe proposed method of cleaning can improve the cleaning efficiency, simplify the process and reduce capital intensity.Example 1. The cleaned waste water is subjected to, for example geothermal chloride-sodium type, mineralization of 7 g/l, the content of phenols 1-1,2 mg/lThe geothermal water purification from phenol is carried out in a laboratory bioreactor with a capacity of 2 liters, which fill stellaartois download of 10 - 15 g/l For immobilization of microorganisms on stellaartois loading bioreactor in the first 3 to 5 days working in the recirculation mode. In the absence of phenols in the purified water bioreactor is transferred to the flow-through mode with a speed of 4-5 volume of fluid per day and introduce granular activated carbon brand KAD-iodine, AG-3 in an amount of 100 g/lOperating mode in the bioreactor is achieved within 3 days. When the temperature of the cleaned fluid 20-22oC and duration 3 h of treatment effect from phenols is 96,2% and at a temperature of 402oC allows complete utilization of phenols, i.e. 100% of the treatment effect.Example 2. The cleaned waste water is subjected to, for example, geothermal chloride-hydrocarbonate-sodium type, mineralization of 2.1 g/l, content of the gum is Westley in a laboratory bioreactor with a capacity of 2 l, which fill stellaartois loading in the amount of 10-15 g/l and add granulated activated carbon brand KAD-iodine, AG-3 in an amount of 100 g/L. Introduction bioreactor operating mode is carried out by analogy with example 1. Assuming a reduction of 60-90% in the purified water, humic substances, the bioreactor is transferred to the flow-through mode.When the temperature of the treated water 20-22oC and duration of 3 h, the cleaning effect from humic substances is 67%, and at a temperature of 402oC - 92%, while the treated water had no color and was transparent.A significant difference of simultaneous adsorption and biological treatment in the bioreactor wastewater, for example, geothermal, is a high cleaning effect from humic substances and other organic contaminants, which is not achieved separate biological or adsorption treatment.Thus, the proposed method of combining the bioreactor of adsorption and biological treatment of waste, geothermal and petroleum water allows to intensify the cleaning process due to controlled biomass of microorganisms on the download as numerous hairs "ruffs" stellaartois load, and the and microorganisms, and on charcoal - adsorption and biological degradation.Sources of information taken into account in the preparation of the description:
1. Olfhof M. at al Biologicol treatment of Cokeoven waste water including provision for. Witrification, Jrou and Steel, Eug, 1980, T. 57, S. 54-60.2. Auth. St. N 1766852, bull. N 37. 1992, Rybnikova Century. And., Zakiev M. I. Method biochemical treatment of wastewater from phenols.3. Patent GDR N 272458, class C 02 F 3/12, 1989 1. The biochemical method of wastewater treatment, including the treatment of waste, geothermal and petroleum water immobilized aerobic microorganisms drives water and the adsorbent is activated carbon, wherein the treatment is carried out by combining biological and adsorption processes in the bioreactor at a liquid temperature of 20 to 45oWith a quantity of granulated activated carbon is 30 - 100 g/l volume of the bioreactor.2. The method according to p. 1, characterized in that the processing is carried out at a liquid temperature of 40 2oC.
FIELD: training tools and devices for the training process.
SUBSTANCE: the invention is dealt with the field of training tools and devices for the training process, in particular, with research of engineering and technology of the automated water supply systems, automatic control of a water supply system in a training process using engineering tools of the new information technologies of training. The multifunctional automated complex training-research laboratory consists of blocks connected in series and-or in parallel through intermediate tanks and devices of water-pump over and a water purification. The laboratory has a pumping plant of the first water rise connected by pressure conduits with chambers of switching with an intermediate tank of influent water, which through a pumping plant of the second water rise is interconnected with the technological apparatuses and blocks of the automated plant of the water purification including a block of clarification of water by settling, consisting of a chamber of a flocculation, a horizontal settler, a block of a reactant system, a block of a clarification of water in a suspension layer, including an air separator connected with a clarifier containing a suspended slurry bed, a block of a water clarification by filtration, that consists of a non-pressure fast and a pressure fast or ultra-speed filter with an intermediate tank of a clarified water, which through the pumping plant of the second water rise is connected to the apparatus of disinfection of water and is connected with an intermediate tank of purified water. The laboratory has an automated system of control over technological processes and a supervisory console with use of a PC and a symbolic circuit. The technical result is creation and implementation in the training-research process of the multifunction automated complex training-research laboratory operating in conditions of model engineering of real water supply systems.
EFFECT: the invention presents a created and introduced multifunction automated complex training-research laboratory operating in the real water supply systems.
18 cl, 7 dwg
FIELD: swimming pools water treatment.
SUBSTANCE: the invention is pertaining to the field of water treatment, in particular, to purification and disinfection means of the recirculating water in the closed contours of swimming pools, which use the principle of operation based on a joint application of the ozone-sorption and vacuum-ejection equipment at utilization of chemical compounds of the metals possessing of oligodynamic properties. The water purification installation in a swimming pool contains located on a pipeline a circulation pump, a bypass trunk line, a sand filter, an ozonizer and an adjusting gate. Besides the installation is supplied with a unit of reception of solutions of disinfectants, the first ejection mixer, a unit of the sand filter disinfection, consisting of the second ejection mixer and the first function switch of the operation modes, a multi-nozzle ejection mixer; a sorption unit; a heat exchanger; a controller of ozone concentration in the recirculating water; a sensor of a reduction-oxidation potential; a transducer of the reduction-oxidation potential; a unit of primary water preparation, the second function switch of operation modes; a filter screen and the perforated pipeline. The technical result: increased sanitary-and-epidemiologic reliability of the waters purification processes and disinfection and also prevention of secondary bacterial pollution of a swimming pool.
EFFECT: the invention ensures increased sanitary-and-epidemiologic reliability of the waters purification processes and disinfection prevention of a swimming pool secondary bacterial pollution.
6 cl, 1 dwg
FIELD: waste water treatment.
SUBSTANCE: initial waste water is mixed with chloroform to extract dimethylacetamide and isobutyl alcohol and, after settling-assisted separation from chloroform, resulting mixture is passed through activated carbon. Thus purified water is then reused in process. Activated carbon is regenerated by chloroform. Chloroform loaded with desorbed substance and chloroform extract are combined and distilled to give dimethylacetamide, isobutyl alcohol, and chloroform. Distilled-off chloroform is divided into two streams, the first one being returned to regenerate activated carbon and the other is mixed with initial waste water.
EFFECT: reduced expenses due to reduced compound of costly adsorbent without loss in waste water treatment efficiency and enabled low-waste technology.
2 cl, 1 dwg
FIELD: alternate fuels.
SUBSTANCE: invention relates to a plant for reusing oil-containing wastes obtained from washing of oil storage tanks to produce secondary fuel. Plant has caisson for stratification of pollutants, waste-supply pumps, conduits with shutoff gate valves to discharge finished product, cleaning solution, and sludge. Plant is further provided with second caisson for purifying spent oil and heated third caisson to prepare stratifying solution, which caisson has bubbling pump, and, connected to both caissons, ejector mixer for mixing stratification agent with water and valve gate positioned between caissons. Bubbling pump is connected to first and second caissons through conduits with shutoff gate valves and first and second caissons are connected through shutoff gate valves to third caisson and to mixer for mixing purified mazut with purified motor oil, which mixer is provided with outlet tube for finished product.
EFFECT: achieved high quality of cleaning tanks by repetitive use of cleaning solution and leading to production of secondary fuel.
FIELD: plants for cleaning natural water and sewage from suspended particles; agriculture; public facilities; purification of natural water and sewage.
SUBSTANCE: proposed filtering plant is provided with superfast pressure filters located axisymmetrically, pressure pipe lines for delivery of starting water and discharge of filtrate, delivery of flushing water and discharge of dirty flushing water; these pipe lines are equipped with electrical gate valves which are fitted axisymmetrically on filter pipe lines. The following components are mounted at one axis vertically: cylindrical pressure chamber for distribution of starting water among filters, cylindrical pressure chamber for distribution of starting water among hydraulic cyclones, cylindrical pressure chamber for dirty flushing water and sludge water and cylindrical pressure chamber for filtrate. Plant is also provided with pressure hydraulic cyclones located axisymmetrically between cylindrical pressure chamber for distribution of starting water among filters and cylindrical pressure chamber for dirty flushing water and sludge water.
EFFECT: increased productivity; enhanced clarification of water.
2 cl, 4 dwg
FIELD: chemical industry; petrochemical industry; bio-engineering; methods of purification of the concentrated waste waters.
SUBSTANCE: the invention is pertaining to bio-engineering, in particular, to purification of the concentrated waste waters and may be used in chemical and petrochemical industries. The method of purification of the concentrated waste water containing aromatic hydrocarbons and their derivatives, peroxides and aldehydes, includes an aerobic treatment with strains of bacteria Pseudomonas sp. VCPV-3893 and Rhodococcus sp. VCLMV-3892. At that before the stage of the aerobic treatment carry out a preliminary purification of the waste waters by a consecutive stages of treatment of the waste waters with an alkaline solution up to the pH value of no less than 9.5. Then conduct the further distillation of the treated flow at the temperature of the bottom distillation residue of the column of no less than 98°C and the duration of presence of no less than 0.2 hour. At that the bottom distillation residue of the column is directed to the stage of the aerobic treatment and the upper product of the column is directed to utilization. The method allows to purify effectively the concentrated waste waters containing aromatic hydrocarbons and their derivatives, and also peroxides and aldehydes.
EFFECT: the invention ensures effective purification of the concentrated waste waters containing aromatic hydrocarbons, their derivatives, peroxides and aldehydes.
FIELD: liquid purification by filtering.
SUBSTANCE: filter for multiple-stage filtering of liquid has chamber equipped with liquid flow inlet and liquid flow outlet; first filter stage provided within said chamber and fluidly communicating with said inlet, said first filter stage comprising material for removal of microorganisms; second filter stage provided within said chamber and fluidly communicating with said outlet, said second filter stage comprising activated carbon. Second filter stage is positioned in said chamber so as to allow liquid to flow through first filter stage before it flows through second filter stage. Filter has third filter stage provided within said chamber and positioned so as to allow liquid to flow through third filter stage before it flows through first filter stage. Third filter stage is made in the form of micro fiber glass web with pores having sizes reducing in the course of flow of the liquid.
EFFECT: increased efficiency in removal of various microorganisms from liquid.
33 cl, 4 dwg
FIELD: waste water treatment.
SUBSTANCE: invention relates to apparatuses for treating household and compositionally related industrial waste waters as well as landscape waste waters and can be used in communal services of villages, urban settlements, tourist complexes, large recreation centers, when treating landscape sewages, e.g. from fur farming areas, aperies, food industry enterprises. Plant comprises filtering self-cleaning apparatus, consumption equalizer, reagent system, clarifier, post-treatment bioreactor, and cleaned water disinfection apparatus. Clarifier is constructed in the form of adhesion apparatus with ascending waste water flow and it is filled with brushing packing. Post-treatment bioreactor is provided with brushing packing and air lift recesses. Disinfection apparatus is constructed in the form of three filter steps filled with each step-specific grainy catalyst. First filter step has descending waste water flow and the second and third ones have ascending waste water flow and bubbler system.
EFFECT: increased impurities removal efficiency, simplified operation, reduced dimensions of equipment, and reduced operation expenses.
FIELD: purification of the surface water runoff; production of installations for purification of the surface water runoff in settlements and industrial enterprises.
SUBSTANCE: the invention is pertaining to the field of the equipment for purification of the surface water runoff, in particular, to the installations for the surface water runoff purification from mechanical impurities and petroleum in settlements and industrial enterprises - especially those allocated in conditions of shortage of free areas, and also drainage waters. The installation for purification of the surface water runoff contains: the lifting-adjusting reservoir with the headrace collector and the overflow pipeline; the body divided by the longitudinal partitions into the storing chambers; the pure water chamber and the settling chamber supplied with the means for removal of settling and the pop-up pollutions; the siphons mounted in one section of the chambers, the water-raising pumps, the screens with the grainy loading, the pipelines for feeding and withdrawal of the waters, the sediment and floating matters, the unit of sediment dehydration, the vertical netted shaft. The storing up chamber adjacent to the settling chamber is divided for two intercommunicating sections. The settling chamber is supplied with the stream-guiding partition and the rigidly fixed chutes. The settling chamber and the first section of the adjacent storing up chamber have the common fittings for withdrawal of the floating matters. In the last storing up chamber there is the overflowing pipeline. In the chamber of the pure water there are the gravitational grainy screens of the first stage with the pipelines and the collecting tank of the purified water. The pressure grainy screens of the second stage are arranged above the lifting-adjusting reservoir and the storing up chambers. The technical result of the invention is the improved quality of the purified water and decreased power input.
EFFECT: the invention ensures improved quality of the purified water and decreased power input.
8 cl, 3 dwg
FIELD: waste water treatment.
SUBSTANCE: invention is meant to be applied for removing petroleum products from industrial waste waters and can be used at enterprises of petroleum, petroleum processing, petrochemical, and has processing industries. Process comprises flotation, biological intensive aeration, biological aftertreatment, and fine aftertreatment. In biological intensive aeration and biological aftertreatment, biocenosis packing utilized is nonwoven polypropylene material with pore size 80-230 μm, cloth thickness 0.30-0.55 mm, and in amount 0.45 to 1.43 g per 1 L water to be treated. Excess biomass is subjected to anaerobic fermentation and 1/3 thereof is used in flotation stage, while the rest is sent to biological treatment of oil slime.
EFFECT: reduced number of treatment stages, investment and operation expenses, and speeded up treatment process.
2 cl, 3 tbl, 9 ex