Efficient evaporation and filtration process method for kitchen high-concentration wastewater

A process method and technology for concentrated wastewater, applied in filtration treatment, chemical instruments and methods, water/sewage treatment, etc., can solve problems such as inability to completely separate wastewater from oil, distillation equipment easily blocked by impurities, and wastewater corrosion, etc. Service life and distillation effect, convenient secondary recycling, water saving effect

Inactive Publication Date: 2021-01-08
深圳市腾浪再生资源发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type of kitchen wastewater treatment technology cannot completely separate the wastewater from oil, while the second type of kitchen wastewater treatment technology has disadvantages such as low efficiency, and the distillation equipment is easily blocked by impurities or corroded by wastewater.

Method used

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  • Efficient evaporation and filtration process method for kitchen high-concentration wastewater

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Effect test

Embodiment 1

[0028] A high-efficiency evaporation and filtration process method for high-concentration kitchen waste water, comprising the following steps:

[0029] a. Wastewater first enters the cooking tower for high-temperature cooking. During the cooking process, inject ozone into the wastewater in the cooking tower. The dosage of ozone is 1g / L, and the cooking time is 15 minutes. High-temperature sterilization and ozone Sterilization, the waste water after high-temperature cooking enters the cooling tower, and the waste water is cooled and cooled;

[0030] b. The wastewater cooled by the cooling tower is pumped into the first PH adjustment tank, and alkali NaOH is added and stirred and mixed. The reaction time of the wastewater in the first PH adjustment tank is 20 minutes, and the pH value of the wastewater is adjusted for the first time. Secondary adjustment, so that the form of ammonia nitrogen in the wastewater is converted from NH4+ to free ammonia (NH3);

[0031] c. The waste w...

Embodiment 2

[0039] A high-efficiency evaporation and filtration process method for high-concentration kitchen waste water, comprising the following steps:

[0040] a. Wastewater first enters the cooking tower for high-temperature cooking. During the cooking process, inject ozone into the wastewater in the cooking tower. The dosage of ozone is 1g / L, and the cooking time is 20 minutes. High-temperature sterilization and ozone Sterilization, the waste water after high-temperature cooking enters the cooling tower, and the waste water is cooled and cooled;

[0041] b. The wastewater cooled by the cooling tower is pumped into the first pH adjustment tank, and alkali NaOH is added and stirred and mixed. The reaction time of the wastewater in the first pH adjustment tank is 30 minutes, and the pH value of the wastewater is adjusted for the first time. Secondary adjustment, so that the form of ammonia nitrogen in the wastewater is converted from NH4+ to free ammonia (NH3);

[0042]c, the waste wa...

Embodiment 3

[0050] A high-efficiency evaporation and filtration process method for high-concentration kitchen waste water, comprising the following steps:

[0051] a. Wastewater first enters the cooking tower for high-temperature cooking. During the cooking process, inject ozone into the wastewater in the cooking tower. The dosage of ozone is 1g / L, and the cooking time is 25 minutes. High-temperature sterilization and ozone Sterilization, the waste water after high-temperature cooking enters the cooling tower, and the waste water is cooled and cooled;

[0052] b. The wastewater cooled by the cooling tower is pumped into the first PH adjustment tank, and alkali NaOH is added and stirred and mixed. The reaction time of the wastewater in the first PH adjustment tank is 40 minutes, and the pH value of the wastewater is adjusted for the first time. Secondary adjustment, so that the form of ammonia nitrogen in the wastewater is converted from NH4+ to free ammonia (NH3);

[0053] C, the waste w...

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PUM

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Abstract

The invention discloses an efficient evaporation and filtration process method for kitchen high-concentration wastewater. Specifically, a cooking tower, a first pH adjustment tank, a flocculation tank, a first solid-liquid separation tank, a second pH adjustment tank and a second solid-liquid separation tank are disposed to carry out sterilization, impurity removal and pH adjustment treatment on the wastewater, so that the treated wastewater is in a few-impurity and pH-value neutral state, the wastewater passes through a first fractionating tower and a second fractionating tower, wastewater isdistilled through the first fractionating tower to be concentrated, the second fractionating tower distills the concentrated wastewater, so that water and grease in the wastewater are completely separated, wastewater treatment is completed, and the distill water obtained through distillation can be used as flushing water, water sources are saved, and distilled grease is convenient to collect; secondary recycling in a later period is facilitated, a first distillation tower and a second distillation tower can be prevented from being blocked by impurities or corroded by the wastewater due to low-impurity wastewater with a neutral pH value, so that the service life of the first distillation tower and the second distillation tower is prolonged, the distillation effect of the first distillationtower and the second distillation tower is improved, and the distillation effect and the distillation efficiency of the wastewater are improved.

Description

technical field [0001] The invention relates to the technical field of kitchen wastewater treatment, in particular to a high-efficiency evaporation and filtration process method for high-concentration kitchen wastewater. Background technique [0002] Food waste includes corrosive food waste produced by households, canteens, restaurants, etc. Food waste mainly comes from the water contained in the food waste itself, the water generated during the fermentation process of the waste, and the water produced by various processes during the treatment of food waste. of moisture. Kitchen wastewater is a typical high-concentration organic wastewater with irregular discharge and many impurities and suspended solids. It is more difficult to treat than domestic garbage wastewater. The color of kitchen wastewater is black, the composition is complex, the concentration of organic matter and ammonia nitrogen is high, and it mainly contains pollutants such as food fiber, starch, fat, animal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10
CPCC02F9/00C02F1/02C02F1/048C02F1/04C02F1/66C02F1/78C02F1/586C02F1/001C02F2001/007C02F1/52
Inventor 张琦吴伟浩吴双文包自立
Owner 深圳市腾浪再生资源发展有限公司
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