Ecological floating island phosphorous removal composite medium and preparation method thereof

A composite matrix, ecological floating island technology, applied in chemical instruments and methods, biological treatment devices, biological water/sewage treatment, etc., can solve problems such as poor phosphorus removal effect in repairing river water bodies, and save raw material costs and adsorption capacity. Reduced, good pore structure

CN109678249AInactive Publication Date: 2019-04-26河南永泽环境科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an ecological floating island phosphorous removal composite medium and a preparation method thereof. The preparation method comprises the following specific preparation processes: S1, respectively carrying out drying pretreatment on aluminum sludge, steel slag and a coconut shell fiber, grinding into powder, and mixing so as to obtain aluminum sludge powder, steel slag powder and coconut shell fiber powder; S2, weighing the following components made in the step S1 in percentage by weight: 40-50% of the aluminum sludge powder, 20-30% of the steel slag powder, 10-20% ofthe coconut shell fiber powder, 5-10% of an adhesive and 5-10% of starch for later use; S3, mixing the aluminum sludge powder, the steel slag powder and the coconut shell fiber powder weighed in the step S2 so as to obtain first mixed powder; S4, sufficiently stirring the adhesive and the starch weighed in the step S2 with the first mixed powder made in the step S3, adding water, carrying out pelletizing and medium / high temperature thermal treatment, and cooling, thereby obtaining ecological floating island phosphorous removal composite medium granules. The ecological floating island phosphorous removal composite medium has the advantages of being low in cost, good in phosphorous removal effect, effective in waste resource recycling, and good in pore structure.
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Description

technical field

[0001] The invention belongs to the technical field of substrates for water ecological restoration, and in particular relates to an ecological floating island phosphorus removal composite substrate and a preparation method thereof. Background technique

[0002] As an emerging green ecological water treatment technology, ecological floating islands are widely used in the ecological restoration of rivers and lakes. In the actual application of urban river management, although the ecological floating island has a certain effect on river restoration, the ability of aquatic plants to absorb phosphorus is limited, and it is difficult to remove total phosphorus. Currently, there are three main methods of phosphorus removal technology: chemical phosphorus removal, biological phosphorus removal, and physical phosphorus removal. Among them, chemical phosphorus removal or chemical-assisted biological phosphorus removal are widely used. The efficiency of chemical phosph...

Examples

Embodiment 1

[0030] A method for preparing the ecological floating island phosphorus removal composite matrix, the specific preparation process is as follows:

[0031] S1, aluminum sludge, steel slag and coconut shell fiber are carried out drying pretreatment respectively, mix after being ground into powder and make aluminum sludge powder, steel slag powder and coconut shell fiber powder;

[0032] S2. Take by weight percentage 40% of aluminum sludge powder, 20% of steel slag powder, 20% of coconut fiber powder, 10% of binder and 10% of starch prepared in step S1 for subsequent use;

[0033] S3, mixing the aluminum sludge powder, steel slag powder and coconut fiber powder taken in step S2 to obtain the first mixed powder;

[0034] S4. Add the binder and starch weighed in step S2 to the first mixed powder prepared in step S3, stir well, add water, granulate, heat treat at medium and high temperature, and cool to obtain an ecological floating island Use phosphorus removal composite matrix pa...

Embodiment 2

[0048] Embodiment 2 is another implementation method of embodiment 1, wherein the same technical solutions as in embodiment 1 are omitted and will not be repeated, and only the technical solutions different from embodiment 1 will be described below.

[0049] A method for preparing the ecological floating island phosphorus removal composite matrix, the specific preparation process is as follows:

[0050] S1, aluminum sludge, steel slag and coconut shell fiber are carried out drying pretreatment respectively, mix after being ground into powder and make aluminum sludge powder, steel slag powder and coconut shell fiber powder;

[0051] S2. Take by weight percentage 45% of aluminum sludge powder, 22% of steel slag powder, 15% of coconut fiber powder, 10% of binder and 8% of starch prepared in step S1 for subsequent use;

[0052] S3, mixing the aluminum sludge powder, steel slag powder and coconut fiber powder taken in step S2 to obtain the first mixed powder;

[0053] S4. Add the ...

Embodiment 3

[0063] Embodiment 3 is another implementation method of embodiment 1, wherein the same technical solutions as in embodiment 1 are omitted and will not be repeated, and only the technical solutions different from embodiment 1 will be described below.

[0064] A method for preparing the ecological floating island phosphorus removal composite matrix, the specific preparation process is as follows:

[0065] S1, aluminum sludge, steel slag and coconut shell fiber are carried out drying pretreatment respectively, mix after being ground into powder and make aluminum sludge powder, steel slag powder and coconut shell fiber powder;

[0066] S2. Take by weight percentage 50% of the aluminum sludge powder, 20% of the steel slag powder, 12% of the coconut fiber powder, 10% of the binder, and 8% of the starch prepared in the step S1 for subsequent use;

[0067] S3, mixing the aluminum sludge powder, steel slag powder and coconut fiber powder taken in step S2 to obtain the first mixed powde...