CS256065B1 - The method of liquid liquid waste organic matter disposal - Google Patents

Abstract

The solution concerns a method of disposal of liquid waste organic substances such as waste from petrochemical production, from the production of paints and varnishes, waste oils, etc. The essence of the solution is that in the first phase, liquid waste organic substances are fixed on an inorganic carrier, such as calcium salts of silicic acid, lime and a mixture of lime with limestone as well as double salts of silicic acid and/or carbonic acid in an amount of at least 25 per. wt. of organic substances, the solid mixture thus prepared is comminuted and fed to the front of the rotary kiln and/or to the lower part of the dispersion preheater of the raw material in the production of lime and cement clinker.

Description

256065

The invention is concerned with liquidation of liquid organic matter such as petrochemical, manufacturing, paint, oil and the like.

In the disposal of organic waste, such a complex technology is required, which does not endanger the environment in individual intermediate stages. In doing so, it requires that the intermediates ensure the viscosity of the consumable water and the stick resistant to external influences without time limitation up to idh, so that only the permissible amounts of pollutants escape from the organic waste by known means. they dispose of solid wastes, but the resulting pollutants escape into the air and pollute the environment. By adding, for example, petroleum wastes in combustion chambers, the amount of sulfur oxides formed is released into the air. Ta-kéto. the disposal of organic waste requires that a separate incinerator with a hopper dosing and brewing device be built up.

Another known method is to dispose of a powder mixture containing waste organics-chemistry-fixed to lime by adding roads and highways. However, in this method, the calorific value of the powder mixtures is not 12 to 20 MJ. kg-1, and it remains a potential danger of future water in the future.

The above drawbacks are eliminated by the liquidation of liquid organic waste such as petrochemical waste, paint and varnish waste, waste oil, and the like, according to the invention, wherein the organic phase is organic. the substances may be fixed to the inorganic carrier and the calcium silicate salts, the lime and the lime-lime mixture as well as the silicic acid and / or bicarbonate double salts in an amount of at least 25% by weight of the organic matter, and the solids thus prepared are crushed and fed to the rotary kiln and or to the bottom of the feedstock preheater in the production of lime and cement clinker. An advantage of the process of liquid liquid waste disposal is the complete disposal of organic waste by high-temperature incineration and in reliably capturing harmful emissions of sulfur oxides in the rotary kiln and in the dispersion preheating or raw material. The disposal of liquid waste-based substances in accordance with the invention is not specifically required for combustion and entrapment devices. This saves investment and operating costs, while at the same time utilizing the calorific value of organic waste, thereby saving primary noble fuel, heavy fuel oil or natural gas. 1: 100 parts by weight of calcium powder (calcium oxide) was quenched with 250 µm. d. water and 100 wt. d. liquid organics (waste from the manufacture of paints and varnishes) and 5.7 wt. d. of calcium chloride. The mixture was homogenized by stirring for 5 minutes and 30 wt. d. Water glass of 37 ° Bé. The resulting precipitate was filtered off and allowed to dry in a landfill containing 29pere. Calorimetrically, the calorific value of the product was 4,977 kg / kg. The above-described prepared product was crushed to a particle size of less than 7 mm and was fed to the face of a rotary kiln at a rate of 1,250 by pneumatic conveyance. In this way, a furnace of 3.5 .mu.L was added, which resulted in an economical primary burning of 4.7% by weight in the rotary kiln, resulting in an effective disposal of organic waste. 2: 100 wt.% Of lime powder was 170 times dw of water, and after the exothermic reaction had ceased, 290 wt.% Of an acidic pitch - SBO gudrone - from Petrochema Dubova was added to the slurry with stirring.

After passing the exothermic reaction, 17.5 wt. d. sodium hydroxide glass at a density of 37% and 3.3% by weight after homogenization for 5 minutes. d. plated chloride. The mixture is homogenized by stirring for 2 minutes at 30 rpm. After the precipitate is filtered off, a powder product with a moisture content of 4% by weight is obtained, with a calorific value of 9,646 kj. kg "1 and the following dry matter composition (w / w): organic substances - 43,77%, CaO - 39,08 ° / o, SO3 - 4,78%, SiO2 - 2,91%, Cl" - 0,62pere. and Na 2 O - 0.26%.

The product was crushed to a particle size of less than 7 mm and the spraying device was conveyed to the face of a rotary kiln at 1,050 kg / hr and a lower portion of the rotary kiln feedstock preheater at 650 kg / hr. -h, 1, which resulted in a savings of 11.89% by weight. At the same time, it has achieved effective disposal of organic waste. .

Claims (1)

SUBJECT A method of disposing of liquid organic waste such as waste from petrochemical production, paints and varnishes, waste oils and the like, characterized in that in the first stage liquid waste organic substances are fixed on an inorganic carrier such as calcium salts of silicic acid, lime and a mixture % of lime with limestone, as well as double solubility of silicic acid and / or carbonic acid in an amount of at least 25 wt. % of the organic matter and the thus prepared solid mixture is crushed and fed to the front of the rotary kiln and / or to the bottom of the dispersion preheater for the production of lime and cement clinker.