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Recycling treatment method for desalinized and desalted kitchen waste

A food waste and treatment method technology, applied in the direction of organic fertilizers, climate change adaptation, etc., can solve the problems of unseen solid food waste desalination, desalination, recycling and reuse, and achieve significant social environmental protection and economic benefits.

Inactive Publication Date: 2014-01-08
北京中诚惠通环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is an existing technology to electrolyze saturated salt water into hypochlorite, which can be used for disinfection and sterilization, but there are no related reports on desalination and desalination of solid food waste to realize its recycling and reuse. In view of this, this paper proposes this invention

Method used

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  • Recycling treatment method for desalinized and desalted kitchen waste
  • Recycling treatment method for desalinized and desalted kitchen waste
  • Recycling treatment method for desalinized and desalted kitchen waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The treatment methods for recycling and reusing food waste after desalination include:

[0034] Step 1: Heat the food waste to be treated (with a water content of 15% and an initial salt content of 0.90%) to 65°C through the heating device 9, and add a pH regulator through the pH regulator adding device 7 to make the pH value reach and keep it at 5;

[0035] Step 2: Input a direct current to make the current density through the plate 5 reach 20A / dm 2 , to electrolyze the salt in the food waste into hypochlorite;

[0036] 2NaCl+2H 2 O=H 2 ↑+Cl 2 ↑+2NaOH;

[0037] Cl 2 +2NaOH=H 2 O+NaCl+NaClO.

[0038] During this process, the pH value of the material is detected in real time by the pH probe 6, and the pH regulator adding device 7 is controlled by the program controller to quantitatively drop the pH regulator to control the pH value to 5;

[0039] Step 3: When the salinity measuring instrument detects that the salt content in the kitchen waste reaches the standar...

Embodiment 2

[0044] The treatment methods for recycling and reusing food waste after desalination include:

[0045] Step 1: Heat the food waste to be treated (with a water content of 20% and an initial salt content of 0.88%) to 85°C through the heating device 9, and add a pH regulator through the pH regulator adding device 7 to make the pH value reach And keep it below 5.5;

[0046] Step 2: Input a direct current to make the current density through the plate 5 reach 18A / dm 2 , to electrolyze the salt in the food waste into hypochlorite;

[0047] 2NaCl+2H 2 O=H 2 ↑+Cl 2 ↑+2NaOH;

[0048] Cl 2 +2NaOH=H 2 O+NaCl+NaClO.

[0049] During this process, the pH value of the material is detected in real time by the pH probe 6, and the pH regulator adding device 7 is controlled by the program controller to quantitatively drop the pH regulator to control the pH value to 5.5;

[0050] Step 3: When the salinity measuring instrument detects that the salt content in the kitchen waste reaches the ...

Embodiment 3

[0053] The treatment methods for recycling and reusing food waste after desalination include:

[0054] Step 1: Heat the food waste to be treated (with a water content of 15% and an initial salt content of 0.82%) to 110°C through the heating device 9, and add a pH regulator through the pH regulator adding device 7 to make the pH value reach and keep it at 4.5;

[0055] Step 2: Input a direct current to make the current density through the plate 5 reach 22A / dm 2 , to electrolyze the salt in the food waste into hypochlorite;

[0056] 2NaCl+2H 2 O=H 2 ↑+Cl 2 ↑+2NaOH;

[0057] Cl 2 +2NaOH=H 2 O+NaCl+NaClO.

[0058] In this process, the pH value of the material is detected in real time by the pH probe 6, and the pH regulator adding device 7 is controlled by the program controller to quantitatively drop the pH regulator to control the pH value to 4.5;

[0059] Step 3: When the salinity measuring instrument detects that the salt content of 8 food waste reaches the standard va...

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Abstract

The invention discloses a recycling treatment method for desalinized and desalted kitchen waste. Solid kitchen wastes are desalinized, decomposed and removed through optimally controlling an electrolysis condition, i.e., the kitchen wastes to be treated are preheated to 55-110 DEG C, an acid medium is added to adjust the pH value of the kitchen wastes, and salts in the kitchen wastes are electrolyzed to ensure that the pH value of swill is up to and kept within a special range, so that the salts in the solid kitchen wastes are successively removed and dissolved into the swill and are conveniently and rapidly ionized and converted into substances such as sodium hypochlorite, and furthermore, the desalinization and desalting effects are achieved. In addition, sodium chloride can be used for simultaneously oxidizing long bacteria, short bacteria and other imparities in the swill to form other harmless molecules, so that the finally obtained natural fertilizer can be recycled. Meanwhile, the treated swill can also be up to the national emission standard, the aims of turning the kitchen wastes into wealth and recycling the kitchen wastes are achieved completely, and the remarkable social and economic benefits are achieved.

Description

technical field [0001] The invention relates to a treatment method for kitchen waste, in particular to a treatment method for recycling the kitchen waste after desalination and desalination. Background technique [0002] Food waste is leftover food bones. Because restaurants and canteens in every city have hundreds of tons of leftover waste every day, the current treatment method is generally to transport them to special treatment factories for incineration and burial, resulting in a huge waste of resources and capital investment. , if it can be processed locally to generate recyclable natural organic fertilizers, it will produce huge social environmental protection and economic benefits. How to convert these remaining wastes into fertilizers on the spot to meet the standards of recycling and reuse requires desalination , because the garbage with salt content cannot be used as fertilizer, it will make the soil hard, which is not conducive to the growth and development of pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/02
CPCY02A40/20
Inventor 杨新玉
Owner 北京中诚惠通环保科技有限公司
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