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Processing method for carrier for removing nitrate in water body

A processing method, nitrate technology, applied in chemical instruments and methods, water pollutants, water/sludge/sewage treatment, etc., can solve the problem of no denitrification carrier production, etc., achieve easy storage and transportation, and high removal efficiency , good effect of bacterial activity

Inactive Publication Date: 2019-04-12
北京潮白环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no report on the production of large-scale industrial denitrification carriers in China, and experimental research in the laboratory stage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of processing method of removing the carrier of nitrate in water body, each raw material is counted by weight kg, comprises the following steps:

[0032] S1. Mixing of raw materials: 100kg of sulfur powder, 125kg of calcium carbonate, 200kg of calcium silicate, 50kg of expanded perlite powder 40 mesh, 10kg of trace elements, derived from CuSO 4 ·5H 2 O 2kg, FeSO 4 ·7H 2 O 1kg, FeCl 3 ·6H 2 O 1kg, CoCl 3 ·6H 2 O 2kg, NaMo 2H 2 O 2kg and MgSO 4 ·7H 2 0.2kg is put into the dry blender according to the proportion and mixes homogeneously;

[0033] S2. Granulation: move the uniformly mixed above-mentioned materials into a constant temperature granulation converter for granulation. get carrier particles;

[0034] S3. Carrier cooling: move the formed carrier particles to a cooling tank for water bath cooling for 0.15h;

[0035] S4. Drying: Dry the cooled carrier particles with hot air at 65°C for 20 minutes;

[0036] S5. Screening: Screen out the carrier par...

Embodiment 2

[0039] A kind of processing method of removing the carrier of nitrate in water body, each raw material is counted by weight kg, comprises the following steps:

[0040] S1. Mixing of raw materials: 80kg of sulfur powder, 90kg of calcium carbonate, 180kg of calcium silicate, 30kg of expanded perlite powder 40 mesh, 5kg of trace elements, including CuSO4 ·5H 2 O 1kg, FeSO 4 ·7H 2 O 0.5kg, FeCl 3 ·6H 2 O 0.5kg, CoCl 3 ·6H 2 O 1kg, NaMo 2H 2 O 1kg and MgSO 4 ·7H 2 O 1kg

[0041] Transfer to a dry mixer and mix evenly;

[0042] S2. Granulation: Move the uniformly mixed above-mentioned materials to a constant temperature granulation converter for granulation. The temperature of the constant temperature granulation converter is 150°C, the rotation speed is 10r / min, the rotation time is 0.5h, and the granulation time is 0.5h , to obtain carrier particles;

[0043] S3. Carrier cooling: move the formed carrier particles to a cooling tank for cooling for 0.05h;

[0044] S4. Dr...

Embodiment 3

[0048] A kind of processing method of removing the carrier of nitrate in water body, each raw material is counted by weight kg, comprises the following steps:

[0049] S1. Mixing of raw materials: 120kg of sulfur powder, 160kg of calcium carbonate, 220kg of calcium silicate, 70kg of expanded perlite powder 40 mesh, 15kg of trace elements, including CuSO 4 ·5H 2 O 3kg, FeSO 4 ·7H 2 O 1.5kg, FeCl 3 ·6H 2 O 1.5kg, CoCl 3 ·6H 2 O3kg, NaMo 2H 2 O 3kg and MgSO 4 ·7H 2 0.3kg is moved to the dry blender and mixed homogeneously;

[0050] S2. Granulation: move the uniformly mixed above-mentioned materials to a constant temperature granulation converter for granulation. The temperature of the constant temperature granulation converter is 180°C, the rotation speed is 60r / min, the rotation time is 2h, and the granulation time is 2h. get carrier particles;

[0051] S3, carrier cooling: move the formed carrier particles to the cooling tank for cooling for 0.25h;

[0052] S4. Dryi...

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Abstract

The invention discloses a carrier for removing nitrate in a water body. The carrier is prepared from, by weight part, powdered sulfur, calcium carbonate, calcium silicate, 40-mesh expanded perlite powder and microelements. The invention further discloses a processing method for the carrier for removing nitrate in the water body. The processing method includes the following steps that S1, powderedsulfur, calcium carbonate, calcium silicate, 40-mesh expanded perlite powder and the microelements are put into a dry mix machine to be mixed uniformly according to a proportion; S2, materials which are uniformly mixed are transferred into a constant-temperature granulating rotating furnace to be granulated, so that carrier particles are prepared; S3, the carrier particles are transferred into a cooling groove to be cooled; S4, the cooled carrier particles are conveyed to a drying machine through an underwater leachating conveyor belt; S5, according to needs, the carrier particles meeting demands are obtained through sieving, bagged and stored, and the carrier particles which do not meet the demands are granulated again by executing the second step. The processing method has the advantagethat the prepared carrier particles can remove nitrate in the water body with high efficiency.

Description

technical field [0001] The invention relates to the field of sewage treatment and the field of water quality improvement of river courses, wetlands and groundwater, in particular to a processing method for removing nitrate carriers in water bodies. Background technique [0002] With the degree of environmental pollution and the country's emphasis on environmental protection, national and local standards for sewage treatment and testing have been raised to a new level. Before 2016, national and local testing items for sewage mainly involved COD, BOD5, SS, pH, ammonia nitrogen and total phosphorus. Existing and newly built sewage stations after 2013 have improved the original process and added advanced treatment units at the end. The existing five detection indicators have been able to meet the qualified standards. However, with the improvement of water quality discharge standards required by environmental protection and the overall layout of the total discharge idea, total n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/28C02F2101/163
Inventor 李碧赵珊珊张黎明张生勃
Owner 北京潮白环保科技股份有限公司
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