CS218735B1 - A method of purifying waste water from flushing bottles into propane-butane - Google Patents

Abstract

The method of cleaning wastewater from the rinsing of propane-butane bottles with recirculation of rinsing water is divided into three stages. In the first stage, the separation of coarse impurities is carried out by gravity, in the second the water is filtered and in the third stage, chemical cleaning is carried out, characterized by the fact that the water pre-treated in the two previous stages is treated with a 40 l - 5% solution of sodium dichloroisocyanurate per 7000 l of water per 8-hour shift. This method can be used to clean any water contaminated with oils with a strong odor.

Description

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BACKGROUND OF THE INVENTION The present invention relates to a method for purifying waste streams from flushing propane-butane bottles in bottled-butane bottles in a closed circuit.

So far, the disposal has been carried out by means of settling pits and oil scavengers and, or via septic tanks, which do not adequately clean the waste water. Thus, the pre-treated water is released into the recipient in an illegal concentration, deteriorating the water and contaminates the surroundings with odor.

These deficiencies are eliminated by the device over-disposal of the bottle rinse waste to propane-butane. The rinsing water purification will be divided into 3 degrees. The first stage separates hydrocarbons from the irrigation water on the basis of different specific weights in the settling space for mechanical impurities and in the gravity separator. The second stage consists of a vapex activated charcoal filter. In the third stage, the dosing pump forms a solution of sodium dichloroisocyanurate to provide purified odor water. In this way, the machine is cleaned by means of an automatic pressure station into the bottle flushing device.

The implementation of this device eliminates the risk of contamination of water streams with petroleum products, removes odor from water and reduces water consumption. The clean-up operation is automatic and all of the proposed equipment is domestic production. Control of irrigation cleaning operation from a single site.

In the accompanying drawings, the design of a sewage treatment plant from flushing-propane-butane bottles (FIG. 1), a schematic of a sewage treatment plant from propane-butane flushing (FIG. 2), is proposed.

The proposed technology for purifying water from propane-butane bottle rinses is three degrees. Grade I separates the bulk of the petroleum products from the rinse water and is based on gravity separation on the basis of the specific water and oil product weights. It consists of a settling and pumping pit, which serves as a gravitational separator with a settling space for mechanical impurities.

The pumped water is pumped from the suction sump of this separator by the pump 2 to the settling tank 3, which is part of the gravitational oil separator. From the settling tank 3, water is conducted through a conduit to adjust the flow rate to the separator itself. from the water. The oil flows by gravity into a barrel, or a tank 5, from which the pipes for the propane-butane residues are sucked out of the aspirin and are pumped into the residual tank after filling the tank. Partially untreated water is drained by gravity into the equalization tank 6. It is pumped out of the equalization tank 6 by a pump 7 into the cleaning stage II, in which the water is purified. The water flows down to the vapex filter 8, in which the bottom underlayer is replaced by a quartz sand layer. A 600 mm vapex filter is used. From this filter, the water flows into the filters with activated charcoal, where the water of the odorants is purified and the water is partially de-scrubbed by the organic compound. A 600 mm vapex filter treated as filter 8 is used, and the vapex layer is sanitized with an activated carbon layer. The active carbon filter receives water into the buffer tank 11, III. degree of water purification. On the pipeline, a metering pump for the transported quantity Q = 0 - 20 1 / h and a max. Overpressure of 0.1 MPa, which dispenses 5% solution of sodium dichloroisocyanate 1: 175 into the flowing water, is pumped out of the buffer tank. , the filter and the existing pressure reservoir 13 being returned to the bottle rinse 14, or may be discharged from the equalization tank 11 via the docking tap. Bypassing the filter on which the valves are mounted, it is possible to exclude each filter separately or to filter it out, for example by converting the absorbent charge. The taps at the bottom serve to dewater the settling tank 3 and the gravity separator 4. The discharged sludge is passed through the sink into the settling space of the settling pit 1. Three-way taps serve to drain water from the respective facilities. Valves and taps serve to drain water from relevant equipment. Valves and taps at the top serve to vent filters 8 and 9. The drained water is ducted into the settling space of the settling pit 1. To achieve maximum efficiency of the separator, the selected volume flow through the separator in the range of 0.5-0.7 1 / s. For flow filters 8 and 9, large volume flow rates are selected. Pumps 2 and 7 are spindle, self-priming, designed for pumping contaminated water, sludge and liquids with solids content up to max. Size 5 mm. Pumps are equipped with safety valves.

Pump flow Q

Hourly peak consumptionSwitching pressureOff pressure

Max. vacuum gauge suction liftElectric motor powerRotation speed of the tank operating pressurePressure tank content 80-120 1 / min6,6 m3 / h0,2 MPa,3,3 MPa 6.5 m 1.5 kW2850 1 / min0,6 MPa400 1

The buffer tank 11 has a total volume of 700 L and a useful water volume of 500 L. Intermediate rinse interval is 13 min. For this cleaning device, which operates with a power of 0.5 to 0.7 1 / s with sufficient reserve to fill the buffer tank 11. The buffer tanks are placed in a suitable stand above the baffle, so that the holder 6 is down and the tank 11 is up, while the outlet pipe of the filter 11 is above, or in the bottom of the filters 8 and 9.

Refilling Water Loss Is Secured By Porn

Claims (2)

a water valve solenoid valve con- nector, κ: ry collects water from a plant well, or, for example, from a drinking water system. Tanks 1, 3, 4, 6 and 11 are covered with suitable lids and ventilated piping to the roof of the plant. The disposal of sludge from the settling space of the settling pit 1 into which it will also be discharged from the settling tank 3 and the separator 4 is carried out by mixing the sludge with wood sawdust. By drying the resulting mixture and burning it with used oils at a dedicated location or in a solid-fuel boiler, the disposal of the waste is terminated. Waste water characteristics and clean up water: Waste water has weak emulsion haze. It is contaminated with solids with a strong penetrating odor. Laboratory Analytical Quality: I SUBJECT A method for the purification of wastewater from rinsing-water-butane bottles with recirculation of rinsing water, which is carried out in three stages, the first being the separation of coarse-purity by gravity; cleaning the mark- 218735 Extractable Content 10-25 mg / L! COD 80-200 mg O2 / l insoluble substances 60—230 mg / 1 J soluble substances 150–200 mg / 1 odor strong Cleaned water is colorless, clear and sparkling odorless and free from solids. Extractable content below 5 mg / lCHSK 20-40 mg o2 / l insoluble matter below 1 mg / l soluble substances 100-140 mg / 1 odor odor In this way, any water contaminated with oils with a strong odor can be cleaned. . BRIEF DESCRIPTION OF THE INVENTION that the water pretreated in the two previous stages is treated with 40 1-5% sodium dichloroisocyanurate solution per 70001 wastewater per 8 hour change. 2 drawings •