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Efficient sludge conditioner

A technology of sludge conditioning and conditioning agent, which is applied in the direction of dehydration/drying/concentrated sludge treatment, etc., which can solve the problems of not being able to reduce pollution, not being able to meet sludge disposal, not being able to meet health needs, etc., to reduce the cost of chemicals and reduce pollution Risk, the effect of simple process

Inactive Publication Date: 2016-04-06
QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the above, it can be seen that the current concentration and mechanical dehydration can not reduce pollution, nor can it meet the sanitary needs, so it can not meet the requirements of sludge disposal. At present, there are many ways to treat sludge, but no matter what method is used , reducing the moisture content of sludge is a necessary prerequisite for other disposal methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] High-efficiency inorganic environmental protection conditioner for deep dehydration of sludge, MgO5%, Ca(OH)245%, fly ash 30%, magnetite tailings powder 6%, Al2O38%, KH2PO46%, produced according to this ratio The cost of the conditioner is low, but the treatment effect of the agent is poor, the mud cake is soft, and the dehydration cycle is long.

Embodiment 2

[0027] High-efficiency inorganic environmental protection conditioner for sludge deep dehydration, MgO10%, Ca(OH)265%, fly ash 10%, magnetite tailings powder 4%, Al2O35%, KH2PO46%, according to the ratio of production The cost of the conditioner is relatively low, and it forms a skeleton with the sludge. During conditioning, the sludge is sticky, the sludge particles are small, the filtering effect is not good, and the treatment effect is slightly poor.

Embodiment 3

[0029] High-efficiency inorganic environmental protection conditioner for deep dehydration of sludge, MgO40%, Ca(OH)25%, fly ash 50%, magnetite tailings powder 2%, Al2O32%, KH2PO41%, produced according to this ratio According to the microscope, flocs are formed, but the structure is loose and unstable, the settling property is poor, and the dehydration efficiency is low, resulting in insufficient mud biscuit degree.

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PUM

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Abstract

The present invention discloses an efficient sludge conditioner. The conditioner comprise, by weight, 5-40% of MgO, 35-65% of Ca(OH)2, 5-50% of fly ash, 1-10% of magnetite tailings powder, 1-10% of Al2O3 and 1-10% of KH2PO4. The municipal sludge with organic matter content of no higher than 45% can be supplemented with the environmentally friendly conditioner for squeezing dewatering, and the dewatering effect is obvious. The conditioner uses raw materials with rich sources, and is low in prices, economical and environmentally friendly; the addition is small at generally 10-30 wt.% of sludge dry matter, and changes in pH range of sludge are small; the conditioner does not change the original nature of sludge, and the sludge after dehydration can be treated in dependence on the nature; part of the active heavy metals in the sludge is cured, so as to reduce the risk of sludge disposal in land use.

Description

technical field [0001] The invention relates to a high-efficiency inorganic conditioner, in particular to a high-efficiency inorganic environment-friendly conditioner for deep dehydration of sludge. Background technique [0002] Water is the basic condition for human existence and the most critical factor affecting and restricting social development. On the one hand, water resources are in serious shortage in most parts of our country; on the other hand, the rapid growth of population and the continuous development of industry are constantly producing a large amount of pollutants, polluting the already scarce water resources. Water shortage and water pollution are two major problems facing our country at present. Since the last century, with the continuous intensification of the relationship between man and nature, people have gradually realized that only sewage treatment and sewage reuse are one of the most effective ways to solve water shortage and water pollution. [00...

Claims

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Application Information

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IPC IPC(8): C02F11/14
Inventor 张磊
Owner QINGDAO WEIYE FORGING & STAMPING MACHINERY CO LTD
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