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Method for removing organic matters from wastewater

A technology for organic matter and wastewater, applied in water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of high cost, endanger human health, deteriorate water quality and environment, etc., achieve low cost, low price, rich The effect of aperture

Inactive Publication Date: 2018-07-10
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main hazards are as follows: First, aerobic hazard: due to biodegradation, high-concentration organic wastewater will make the receiving water anoxic or even anaerobic, and most aquatic organisms will die, resulting in stench, deteriorating water quality and environment
The second is sensory pollution: high-concentration organic wastewater not only makes the water lose its use value, but also seriously affects the normal life of people near the water
The third is toxicity hazards: ultra-high concentration organic wastewater contains a large amount of toxic organic substances, which will continue to accumulate and store in natural environments such as water bodies and soils, and finally enter the human body, endangering human health
[0004] Chinese patent 200810051419.4 discloses a method for removing low-concentration natural organic matter in water, which is an organic combination of titanium dioxide adsorption, ultraviolet catalytic oxidation and membrane filtration technology, and the removal rate of natural organic matter in the effluent treated by the technical solution of the present invention can reach More than 92, but the cost of this method is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for removing organic matter in wastewater, comprising the steps of:

[0030] (1) Wash banana peels, orange peels and grapefruit peels, soak them in a solution containing a pore-forming agent at 10°C for 10 hours, then freeze-dry them at -50°C for 12 hours, and pulverize them to obtain mixed granules; wherein, the The pore-forming agent is sodium hydroxide, the concentration of the pore-forming agent is 5wt%, the solution is water, the mass ratio of banana peels, orange peels, and grapefruit peels is 3:1:1, and the banana peels, orange peels, and grapefruit peels are in the solution The total concentration of 100mg / ml;

[0031] (2) Place the mixed particles prepared above in a high-temperature furnace, calcinate them under an inert gas atmosphere, then ball mill them at 30 rpm for 4 hours under a nitrogen-containing gas atmosphere, and pass through a 100-mesh sieve to obtain a mixed powder;

[0032] (3) Pickling and washing the above-mentioned mixed powder succ...

Embodiment 2

[0037] A method for removing organic matter in wastewater, comprising the steps of:

[0038] (1) Wash banana peels, orange peels and grapefruit peels, soak in a solution containing a pore-forming agent at 50°C for 0.5h, then freeze-dry at -55°C for 24h, and pulverize to obtain mixed granules; Described pore-forming agent is ammonium bicarbonate, and the concentration of pore-forming agent is 20wt%, and solution is ethanol,, and the mass ratio of banana peel, orange peel, grapefruit peel is 3:1:2, and banana peel, orange peel, grapefruit peel are in The total concentration in the solution is 1000mg / ml;

[0039] (2) Place the mixed particles prepared above in a high-temperature furnace, calcinate them under an inert gas atmosphere, then ball mill them at 80 rpm for 20 hours under a nitrogen-containing gas atmosphere, and pass through a 200-mesh sieve to obtain a mixed powder;

[0040] (3) Pickling and washing the above-mentioned mixed powder successively, soaking in the treatme...

Embodiment 3

[0045] A method for removing organic matter in wastewater, comprising the steps of:

[0046] (1) Wash banana peels, orange peels and grapefruit peels, soak them in a solution containing a pore-forming agent at 20°C for 2 hours, then freeze-dry them at -51°C for 15 hours, and pulverize them to obtain mixed granules; wherein, the The pore-forming agent is urea, the concentration of the pore-forming agent is 10wt%, the solution is acetic acid, the mass ratio of banana peels, orange peels, grapefruit peels is 3:1:1.5, the total amount of banana peels, orange peels, grapefruit peels in the solution The concentration is 300mg / ml;

[0047] (2) Place the mixed particles prepared above in a high-temperature furnace, calcinate them under an inert gas atmosphere, then ball mill them at 40 rpm for 6 hours under a nitrogen-containing gas atmosphere, and pass through a 100-mesh sieve to obtain a mixed powder;

[0048] (3) Pickling and washing the above-mentioned mixed powder successively, ...

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PUM

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Abstract

The invention discloses a method for removing organic matters from wastewater. The method comprises the following steps: firstly, subjecting banana peels, tangerine peels and pomelo peels, which serveas raw materials, to soaking treatment sequentially by a pore former containing solution, then, carrying out freeze-drying treatment, finally, carrying out calcination treatment in inert gas, carrying out ball milling in a nitrogen gas containing atmosphere, subjecting prepared mixed powder to acid pickling and water washing sequentially, carrying out soaking with a treatment solution so as to prepare an adsorbent, adding a precipitant into the wastewater containing the organic matters, carrying out precipitation treatment for 1 to 2 hours with stirring at 800rpm to 1,000rpm, then, carrying out static precipitation for 30min, and carrying out solid-liquid separation; collecting supernatant; and adding the adsorbent prepared in the step (3) into the supernatant, carrying out adsorption treatment for 30min with stirring, then, carrying out solid-liquid separation, and collecting the adsorbent for reutilization. According to the method, the organic matters can be effectively removed fromthe wastewater, secondary pollution to water is absent, and the treatment cost is low.

Description

Technical field: [0001] The invention relates to the field of wastewater treatment, in particular to a method for removing organic matter in wastewater. Background technique: [0002] With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. Since the composition of industrial organic wastewater is more complex, and some are toxic, industrial organic wastewater treatment is more difficult and more important than urban sewage treatment. [0003] In the high-concentration organic wastewater produced by industry, there are many acids and bases, often with strong acid or strong alkali. The main hazards are as follows: First, aerobic hazard: due to biodegradation, high-concentration organic wastewater will make the receiving water anoxic or even anaerobic, and most aquatic organisms will die, resulting in stench, dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F9/04C02F101/30
CPCB01J20/20C02F1/283C02F1/5281C02F2101/30
Inventor 陈东进
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD