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Method for taking stevia rebaudiana as main auxiliary material to remove city domestic sludge odor

A technology for urban domestic sludge and stevia, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of difficult regeneration, low adsorption capacity, low deodorization efficiency, etc. Good practical application value and promotion value, considerable economic benefits, good deodorization effect

Inactive Publication Date: 2019-03-26
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical solution of the present invention aims at the problems of natural plant deodorants such as small specific surface area, low adsorption capacity, difficult regeneration, high cost, low deodorizing efficiency, poor deodorizing effect, etc.

Method used

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  • Method for taking stevia rebaudiana as main auxiliary material to remove city domestic sludge odor
  • Method for taking stevia rebaudiana as main auxiliary material to remove city domestic sludge odor
  • Method for taking stevia rebaudiana as main auxiliary material to remove city domestic sludge odor

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A method for preparing a sludge deodorant with stevia or stevia residues after extracting glycosides. The preparation method uses stevia or stevia residues as raw materials and obtains through the following steps:

[0017] (1) Solid auxiliary material 1: collect fresh stevia leaves or residues after extraction of stevia sweeteners, dry them naturally or industrially, crush them into powder and pass through a 10--400 sieve for later use;

[0018] (2) Solid auxiliary material 2: collect citrus orange peel or star anise or cinnamon bark or pepper or bay leaves or eucalyptus leaves, dry them naturally or industrially, crush them into powder and pass through a 10--400 sieve to prepare an aromatic solid powder. For a single raw material, add and mix according to the proportion of 1 part each, and set aside;

[0019] (3) Solid auxiliary material 3: adding other solid auxiliary materials: diatomaceous earth and ferrous sulfate, each accounting for 50%; (4) mixing: mixing solid ...

Embodiment 2

[0024] Carry out the collection of material according to example 1, then carry out batching according to following:

[0025]

[0026] Method is with embodiment 1.

Embodiment 3

[0028] Carry out the collection of material according to example 1, then carry out batching according to following:

[0029]

[0030] The sludge deodorant prepared by the above example is compared with the natural plant deodorant of market circulation, which has large adsorption capacity, easy to get raw materials, and good deodorizing effect; meanwhile, the stevia rebaudiana residue itself has also been obtained as a waste material. Good reuse reduces the pollution of waste to the environment and can also greatly reduce the production cost of deodorants, bringing very considerable economic benefits.

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Abstract

The invention discloses a method for removing city domestic sludge odor. A solid auxiliary material is prepared from the following raw materials in parts by weight: a stevia rebaudiana solid auxiliarymaterial, a fragrant auxiliary material and other auxiliary materials; the stevia rebaudiana solid auxiliary material is residue after extraction of stevia rebaudiana fresh leaves or stevia rebaudiana glucoside, and the dry powder accounts for 5-50% of the total weight of sludge; the fragrant auxiliary material is dried and ground citrus peel, or alangium faberi, or cinnamon, or pericarpium zanthoxyli, or myrcia or eucalyptus leaves, and the fragrant solid auxiliary material accounts for 0.1-10% of the total weight of the sludge; the other auxiliary materials account for 0.1-10% of the totalweight of the sludge and are prepared from diatomite and ferrous sulfate; and a fungicide liquid auxiliary material accounts for 0.1-30% of the total weight of the sludge, and the fungicide is mixed with the solid auxiliary material for fermentation to prepare a deodorizing agent. Compared with the prior art, the method has the following beneficial effects that the deodorizing agent not only can effectively remove the odor of the sludge, but also has a bacteriostatic effect; the stevia rebaudiana residue is turned into wealth, the operation fee is greatly lowered, and the practicability is high; the preparation technology is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of biological deodorization preparation, and belongs to the disciplines of biotechnology and bioengineering of ecological civilization. It is a method of removing sludge odor by using stevia fresh leaves or the residue after extracting glycosides from stevia as the main raw material. Background technique [0002] Sludge refers to the sediment, particulate matter and floating matter produced when wastewater is treated by physical methods, chemical methods, physical chemical methods and biological methods. During the treatment and disposal of sludge, strong ammonia gas, hydrogen sulfide, etc. will be released. Small molecule malodorous gases seriously affect the ecological environment, so the problem of odor pollution must be effectively controlled in the sludge treatment process. In order to suppress and reduce the foul odor of sludge, various deodorization methods have emerged as the times require, but most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00
CPCC02F11/00
Inventor 程桂阳郝再彬李霞李海云
Owner GUILIN UNIVERSITY OF TECHNOLOGY