Compound shellfish modified biological phosphorus removal material and preparation method and application thereof

A technology for biological phosphorus removal and shellfish removal, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of difficult recovery, long interval, serious secondary pollution, etc. Phosphorus removal effect and maintenance time, the effect of good phosphorus removal and water purification ability

Inactive Publication Date: 2017-10-20
鲲瑛(上海)生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phosphorus removal efficiency of this method is not high. After a large amount of adsorbent powder is put in, the sludge will increase, the recovery is difficult, and the secondary pollution is more serious; A chemical reaction takes it out of the body of water,
This method requires a large amount of chemical reagents, which is costly, and the sludge formed by the reagents entering the water body will cause secondary pollution of the water body; the biodegradation method uses animals, plants, microorganisms, etc. to remove the enriched phosphorus in the water body. The method is clean and environmentally friendly, and does not cause other pollution, but it is time-consuming and labor-intensive, and the operation time interval is long
[0005] Since the above-mentioned phosphorus removal methods have more or less defects in varying degrees, it is still a problem that cannot be ignored to find more environmentally friendly, efficient and cheap modified biological phosphorus removal materials.

Method used

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  • Compound shellfish modified biological phosphorus removal material and preparation method and application thereof
  • Compound shellfish modified biological phosphorus removal material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing a composite shellfish modified biological phosphorus removal material, the method comprising the following steps:

[0036] 1) Remove the fleshy tissues of fresh mussels, oysters, and scallops, wash them with clean water, and dry the shells naturally for 2 to 5 days to remove weeds and other substances attached to the surface for later use.

[0037] 2) According to the mass percentage, the mussel shells are 30%, the oyster shells 45%, and the scallop shells 25%. The air-dried shell shells are respectively weighed and crushed into particles with a diameter of 50-150 mm.

[0038] 2) Take about 250g of the above pulverized particles and put them into the crucible, and raise the temperature of the muffle furnace to 350°C. After the temperature is stable, put the crucible into the muffle furnace to preheat for 1 hour, and then raise the temperature To 700°C, calcined for 0.5 hours.

[0039] 3) When the calcination time is up, l...

Embodiment 2

[0041] This embodiment provides a method for preparing a composite shellfish modified biological phosphorus removal material, the method comprising the following steps:

[0042] 1) Remove the fleshy tissues of fresh mussels, oysters, and scallops, wash them with clean water, and dry the shells naturally for 2 to 5 days to remove weeds and other substances attached to the surface for later use.

[0043] 2) Take about 250g of the above pulverized particles and put them into the crucible, raise the temperature of the muffle furnace to 450°C, after the temperature stabilizes, put the crucible into the muffle furnace to preheat for 2 hours, then raise the temperature of the muffle furnace Calcined at 750°C for 1 hour.

[0044] 3) When the calcination time is up, reduce the temperature of the muffle furnace to 250°C, keep it warm for 2 hours, then turn off the power of the muffle furnace, cool it naturally, take out the material in the crucible after it is powdery, and store it in a...

Embodiment 3

[0047] This embodiment provides a method for preparing a composite shellfish modified biological phosphorus removal material, the method comprising the following steps:

[0048] 1) Remove the fleshy tissues of fresh mussels, oysters, and scallops, wash them with clean water, and dry the shells naturally for 2 to 5 days to remove weeds and other substances attached to the surface for later use.

[0049]2) Take about 250g of the above pulverized particles and put them into the crucible, raise the temperature of the muffle furnace to 500°C, after the temperature stabilizes, put the crucible into the muffle furnace to preheat for 3 hours, and then raise the temperature of the muffle furnace Calcined at 800°C for 2 hours.

[0050] 3) When the calcination time is up, lower the temperature of the muffle furnace to 300°C, keep it warm for 3 hours, then turn off the power of the muffle furnace, cool it naturally, take out the material in the crucible after it is powdery, and store it i...

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Abstract

The invention discloses a compound shellfish modified biological phosphorus removal material and a preparation method and application thereof. In the method, mytilus coruscus shells, oyster shells and scallop shells are taken as raw materials and smashed according to a certain proportion, and the smashed raw materials are subjected to preheating treatment, calcining treatment and heat-preserving treatment to obtain a powdery compound shellfish modified biological phosphorus removal material, and the phosphorus removal material is applied to phosphorus removal of wastewater. The compound shellfish modified biological phosphorus removal material has the advantages of simple preparation process, realization of recycling of waste resources, and certain social, economic and environmental benefits. The prepared modified biological phosphorus removal material has a removal rate of 90 percent or more for phosphorus in water bodies, and has very high phosphorus removal and water purification capabilities. The phosphorus removal effect and the maintenance time can be improved remarkably in an adding way that the modified biological phosphorus removal material is wrapped with a slow-release package, and the slow-release package is added into a water body.

Description

technical field [0001] The invention belongs to the technical field of water treatment materials, and in particular relates to a compound shellfish modified biological phosphorus removal material and its preparation method and application. Background technique [0002] The problem of water pollution has seriously restricted the further development of our society and the improvement of people's living standards. With the acceleration of industrialization and urbanization, the world is facing the challenge of water shortage and serious pollution. In my country, especially the rapid development of small towns, the expansion of urban population and the eutrophication of water caused by agricultural pollution, it is my country's water The most important issue of resources. Eutrophication has led to a series of severe problems such as frequent occurrence of blue-green algae blooms, threats to the safety of water sources, and unsatisfactory industrial and agricultural water use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F101/10
CPCC02F1/5236C02F2101/105
Inventor 王强陆健健刘亮裴茂青王丰毅李廷发
Owner 鲲瑛(上海)生物科技有限公司
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