Chemical alkali manufacture waste harness and high value utilization process

A waste and high-value technology, applied in the field of clean production process innovation in the chemical soda industry, can solve problems such as undetected and achieve remarkable results

Inactive Publication Date: 2006-04-26
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Chemical alkali manufacture waste harness and high value utilization process

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Embodiment 1

[0025] Such asfigure 1 The shown technological process, after step 7 is distilled, waste (alkali slag) is obtained, and impurities such as sand and stone are removed through step 10 with a vibrating sieve, and through step 17, coarsely ground with a column mill, in the chemical reaction kettle A, each Add 1 to 15 kg of chlorine dioxide, 5 to 65 kg of chlorate, 3 to 35 kg of chlorite, 15 to 75 kg of hypochlorite, and 15 to 75 kg of 5 to 80 kg, 1 to 15 kg of carbonate, and 1 to 5 hours of reaction time; superfine treatment by ultrasonic colloid mill in step 13, 99% of the obtained product has a particle size of 0.1 nm to 15 μm; and then packed. The products produced produce nano-sized particles in water bodies and have strong oxidizing ability. As ecological environment improvers and sewage treatment agents, products for preventing red tides and aquatic biological diseases are used at a concentration of 1-150ppm, of which: preventing red tides and freshwater The dosage of Huahua...

Embodiment 2

[0030] Such as figure 1 As shown in the process flow, after the alkali slag of the alkali industry waste is removed from impurities and column milled, in the chemical reaction kettle B, chlorine dioxide is produced by the above-mentioned chlorine dioxide production device, so that the alkali slag is combined with the chlorine dioxide in the chemical reaction kettle B. Chlorine oxide reacts directly, the weight percentage of chlorine dioxide is 1-11%, and then ultra-fine by ultrasonic colloid mill to obtain 99% of the product with a particle size of 0.1nm-15μm; it is packed in bags or barrels. The obtained product is used to directly purify domestic drinking water and urban reclaimed water with high hygienic standards. The water consumption is 3-85ppm. Its specific implementation is shown in Table 4. If the concentration of chlorine dioxide in the product exceeds 2%, the requirements for transportation and storage conditions are more complicated. Therefore, products with a c...

Embodiment 3

[0033] Such as figure 1 Shown technical process, according to step 7, waste (waste liquid) is obtained after distillation, in chemical reactor C, add the chlorine dioxide that is made by above-mentioned chlorine dioxide production device 24, make the concentration balance of chlorine dioxide, add Hydroxide (potassium hydroxide or sodium hydroxide), make its weight percentage be 1~3%, generate liquid product, wherein the concentration of chlorine dioxide is 1~3%, the concentration of calcium chloride is 23~25% %, the product is filled or bottled, and the concentration used is 1-150ppm, of which: 1-65ppm is used to prevent red tide and freshwater bloom; 1-65ppm is used to prevent and control fish and shrimp diseases; The amount of waste water is 15-150ppm. Its specific implementation is shown in Table 5.

[0034] serial number

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Abstract

The present invention is comprehensive process of treating and high-value utilizing alkali producing wastes, including base slag and waste alkali liquid, and aims at realizing optimized no-pollution and zero-exhaust technological process. The wastes are modified physically and chemically to produce new product with the unique property of nanometer material and strong oxidizing property. The base slag is treated through filtering, depositing, sieving, coarse grinding, reaction with ClO2 and other chemicals and grinding to form product of grain size from 0.1 nm to 15 microns. The waste alkali liquid is made to react with ClO2 and other chemicals in reactor to obtain liquid product, with the ClO2 material having concentration of 1-3 %. The products of the present invention may be used in preventing and treating organism diseases and treating water.

Description

technical field [0001] The invention relates to the innovation of clean production technology in the chemical soda making industry, and relates to the pollution control and resource utilization technology of waste alkali slag (white mud) and waste liquid in soda ash production. After the waste alkali residue and waste liquid are modified physically and chemically, they are transformed into new materials that can generate nano-sized particles in water bodies and have strong chemical oxidation properties and strong physical adsorption properties. The invention can realize non-pollution and zero discharge of soda industry wastes, generate strengthened products with properties of nanometer materials, and has remarkable effects on preventing and controlling biological diseases, red tides and algal blooms, treating polluted waste water and purifying drinking water. Background technique [0002] Modern soda ash production mainly uses salt, limestone and ammonia as raw materials. Af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/66B09B3/00
Inventor 朱校斌
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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