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Wastewater treatment method

A waste water treatment and waste water technology, applied in natural water body treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of increasing investment cost and operating cost, and uneconomical economy

Pending Publication Date: 2022-06-07
HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Whether it is to use physical chemical methods or biochemical methods to treat wastewater, it will increase investment costs and operating costs, which is not economical.

Method used

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  • Wastewater treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Catalytic cracking test was carried out in the fluidized-bed reactor, and the waste water obtained by mixing the waste water after the propylene preparation propylene oxide device to extract propylene glycol methyl ether and the alcohol-containing waste water obtained (referred to as "influent water" for short) contained organic matter, and its organic matter content was as shown in the table 1) is added from the inlet of the terminator in the middle of the fluidized bed reactor, and the wastewater containing organic matter and the raw material oil (density at 20 ° C is 0.92 g cm -3 , the feed ratio of distillation range IBP / EBP is 35-500 ℃) is 4.5: 100, the catalyst is the catalyst (wherein the content of alumina is 47 wt. %, the content of silicon oxide is 49% by weight, the content of rare earth oxide is 3% by weight), the weight ratio of the amount of catalyst to the raw oil is 5.3:100, and the conditions of catalytic cracking include: the reaction temperature is 510...

Embodiment 2

[0036]The catalytic cracking test was carried out in the fluidized bed reactor, and the wastewater containing organic matter (the composition is shown in Table 1) obtained by mixing the wastewater after the propylene production propylene oxide unit did not extract propylene glycol methyl ether and the alcohol-containing wastewater (the composition is shown in Table 1) was removed from the fluidized bed. The terminator inlet in the middle of the reactor is added, and the feed ratio of the described organic-containing waste water and feedstock oil (with Example 1) is 4:100, and the catalyzer is the trade mark of CGP- The catalyst of C (in which the content of alumina is 51% by weight, the content of silicon oxide is 47% by weight, and the content of rare earth oxide is 1% by weight), the weight ratio of the amount of the catalyst to the raw oil is 5:100, and the catalytic cracking The conditions included: the reaction temperature was 530 °C, the reaction pressure was 0.36 MPa, an...

Embodiment 3

[0040] The catalytic cracking test was carried out in the fluidized bed reactor, and the wastewater containing organic matter (the composition is shown in Table 1) obtained by mixing the wastewater after the propylene production propylene oxide unit did not extract propylene glycol methyl ether and the alcohol-containing wastewater (the composition is shown in Table 1) was removed from the fluidized bed. The terminator inlet at the bottom of the reactor adds, and the feed ratio of the described organic-containing waste water and feedstock oil (with Example 1) is 5.6:100, and the catalyzer is that the trade name of the commercial product from Sinopec Catalyst Company Changling Branch is CDOS. Catalyst (wherein the content of alumina is 50% by weight, the content of silicon oxide is 44% by weight, and the content of rare earth oxide is 5% by weight), the weight ratio of the amount of catalyst to the raw oil is 6:100, and the conditions of catalytic cracking Including: the reactio...

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Abstract

The invention relates to the field of wastewater treatment, in particular to a wastewater treatment method. The method comprises the following step: in the presence of a catalytic cracking catalyst, carrying out catalytic cracking reaction on wastewater containing organic matters and a catalytic cracking raw material. According to the method disclosed by the invention, a complex wastewater treatment process can be omitted, but the wastewater is applied to the catalytic cracking reaction, so that the operation cost of catalytic cracking is saved, and organic matters in the wastewater are recycled; the method disclosed by the invention is simple to operate, has industrial feasibility and has relatively good economical efficiency.

Description

technical field [0001] The present invention relates to the field of wastewater treatment, in particular, to a method for wastewater treatment. Background technique [0002] Sewage treatment is to use various necessary technologies and means to separate the pollutants in the sewage and purify the water quality. The technologies and means referred to here are the basic methods of sewage treatment. [0003] Due to the variety of pollutants in sewage, when choosing a treatment method, it is often necessary to use a combination of physical treatment, chemical treatment, physical chemical treatment and biochemical treatment to remove pollution of different natures. to achieve the purpose of purification. [0004] Sewage treatment can be divided into primary, secondary and tertiary treatment according to the degree of treatment. Primary treatment mainly removes suspended solid pollutants in sewage, and most of the physical treatment methods can only complete the task of primary...

Claims

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Application Information

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IPC IPC(8): C02F1/00C10G11/00C10G11/18C02F101/30C02F103/36
CPCC02F1/00C10G11/00C10G11/18C02F2101/30C10G2300/70C02F2103/36Y02W10/10
Inventor 王伟李华林民何驰剑伍小驹佘喜春高计皂
Owner HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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