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A high-efficiency and energy-saving wastewater treatment process

A waste water treatment, high-efficiency and energy-saving technology, applied in the field of water treatment, can solve the problems of long time consumption, low efficiency and high cost, and achieve the effect of reducing treatment cost, high removal rate and reducing dosage

Active Publication Date: 2019-03-29
秦皇岛佰工钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing water treatment process takes a long time, is costly, and has relatively low efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-efficiency and energy-saving wastewater treatment process, comprising the following steps:

[0024] (1) Preparation of adsorbent:

[0025] 1) Pulverize 100 parts of sawdust, add 5 parts of melamine phosphate, stir for 12 hours, and obtain the mixed material;

[0026] 2) Place the mixed material obtained in step 1) in a tube furnace under nitrogen protection, raise the temperature to 550°C at a heating rate of 10°C / min, keep the constant temperature for 30min, and then rapidly raise the temperature at a heating rate of 18°C / min To 800°C, keep the constant temperature for 1 hour, activate into carbon, wash the obtained sample with deionized water until the filtrate is neutral, place it in a vacuum drying oven, and dry it to constant weight at 100°C to obtain activated carbon;

[0027] (2) Inject the water to be treated into the pre-ozone contact tank, then carry out coagulation and sedimentation, and then enter the sand filter tank for filtration. The speed is 12...

Embodiment 2

[0029] A high-efficiency and energy-saving wastewater treatment process, comprising the following steps:

[0030] (1) Preparation of adsorbent:

[0031] 1) Pulverize 120 parts of bamboo chips, add 180 parts of melamine phosphate, and stir for 48 hours to obtain a mixed material;

[0032] 2) Put the mixed material obtained in step 1) in a tube furnace under the protection of nitrogen, raise the temperature to 650°C at a heating rate of 15°C / min, keep the constant temperature for 50min, and then rapidly raise the temperature at a heating rate of 20°C / min To 900°C, keep the constant temperature for 2 hours, activate into carbon, wash the obtained sample with deionized water until the filtrate is neutral, place it in a vacuum drying oven, and dry it to constant weight at 120°C to obtain activated carbon;

[0033] (2) Inject the water to be treated into the pre-ozone contact tank, then carry out coagulation and sedimentation, and then enter the sand filter tank for filtration. Th...

Embodiment 3

[0035] A high-efficiency and energy-saving wastewater treatment process, comprising the following steps:

[0036] (1) Preparation of adsorbent:

[0037] 1) Crush 105 parts of straw, add 35 parts of melamine polyphosphate, and stir for 16 hours to obtain a mixed material;

[0038] 2) Put the mixed material obtained in step 1) in a tube furnace under the protection of nitrogen, raise the temperature to 550°C at a heating rate of 11°C / min, keep the constant temperature for 35min, and then rapidly raise the temperature at a heating rate of 19°C / min To 800°C, keep the constant temperature for 1.2h, activate into carbon, wash the obtained sample with deionized water until the filtrate is neutral, place it in a vacuum drying oven, and dry it to constant weight at 105°C to obtain activated carbon;

[0039] (2) Inject the water to be treated into the pre-ozone contact tank, then carry out coagulation and sedimentation, and then enter the sand filter tank for filtration. The speed is ...

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Abstract

The invention discloses a high-efficiency and energy-saving wastewater treatment technology. The high-efficiency and energy-saving wastewater treatment technology comprises the following steps of firstly, adding nitrogen-containing phosphate into a plant-based biomass; then, rising temperature, and activating into carbon, thus obtaining the modified active carbon; injecting to-be-treated water into a pre-ozone contact pool, coagulating and precipitating; sending into a sand filtering pool, and filtering; sending a filtering liquid into a main ozone contact pool, and then sending into a biological active carbon pool; adding the obtained active carbon into the biological active carbon pool, and adsorbing for 2 to 3h; sending into a conditioning pool, adding a high-efficiency coagulation agent into the conditioning pool, pneumatically stirring, and fully mixing the coagulation agent and wastewater; sending into an oblique pipe sedimentation tank, separating solid and liquid components of the wastewater, and adding chloride into the separated water for disinfecting, so as to reach the drainage standard. The high-efficiency and energy-saving wastewater treatment technology has the advantages that the cost is low, the efficiency is high, and the environment-friendly and energy-saving effects are realized.

Description

Technical field: [0001] The invention relates to the technical field of water treatment, in particular to a high-efficiency and energy-saving wastewater treatment process. Background technique: [0002] As an environmentally friendly adsorbent, activated carbon has strong adsorption and catalytic properties, sufficient raw materials and high safety, acid and alkali resistance, heat resistance, insoluble in water and organic solvents, and easy regeneration. Organic pollutants such as benzene compounds, phenolic compounds, petroleum and petroleum products, etc. have strong adsorption capacity, and it is difficult to remove organic pollutants by biological and other chemical methods, such as chroma, methylene blue surface active substances, herbicides, etc. Chemicals, pesticides, synthetic dyes and many synthetic organic compounds have a good removal effect; in addition, activated carbon also has a strong adsorption capacity for heavy metals in electroplating wastewater and sme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04B01J20/20B01J20/30
CPCB01J20/20C02F1/001C02F1/283C02F1/50C02F1/5236C02F1/56C02F1/78C02F9/00C02F2001/007C02F2301/08C02F2303/04
Inventor 王文庆
Owner 秦皇岛佰工钢铁有限公司
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