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Degradable bio-compatible water treatment filler and preparation method thereof

An affinity, water treatment technology, applied in water treatment and other sewage treatment fields, can solve the problem of increased treatment cost, shorten the film hanging time, enhance the removal efficiency, and improve the effect of water treatment.

Inactive Publication Date: 2013-11-27
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the Biological Oxygen Demand (BOD) of aquaculture wastewater is generally low, a large amount of carbon sources are required in the process. If low-carbon and high-ammonia-nitrogen wastewater is treated, additional carbon sources must be added, which will increase the treatment cost.

Method used

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  • Degradable bio-compatible water treatment filler and preparation method thereof
  • Degradable bio-compatible water treatment filler and preparation method thereof
  • Degradable bio-compatible water treatment filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 70kg of polybutylene succinate with a fineness above 200 mesh, 14.5kg of light calcium carbonate, 22.5kg of starch, 2.5kg of activated carbon, 0.88kg of nutrient salt (0.81kg of ferrous chloride, 0.06kg of magnesium chloride), 0.55kg of silane coupling agent, 1.75kg of polyvinyl alcohol, 1.75kg of stearic acid, and 1kg of white oil are placed in a mixer and mixed evenly, and sent to a granulator for high-temperature processing into granules. Then take 90kg of the prepared masterbatch and 30kg of foaming agent and mix them into the extruder barrel. What is extruded from the die mouth of the machine head is a gray-black cylinder with a cross support frame and a tooth-shaped cross-section inside. After sizing, cooling and molding, cutting and shaping, the product 1 of the moving bed A-type filter material can be obtained, such as figure 1 As shown, its density is 0.98kg / L.

Embodiment 2

[0035] Take 55kg of polyε-caprolactone with a fineness above 200 mesh, 16.8kg of light calcium carbonate, 0.75kg of cellulose, 16.8kg of starch, 2.25kg of zeolite powder, 0.75kg of nutrient salt (0.65kg of ferrous sulfate, 0.65kg of magnesium sulfate 0.11kg), 0.75kg of silane coupling agent, 1.5kg of polyvinyl alcohol, 1.5kg of stearic acid, 3.75kg of calcium chloride, and 0.8kg of white oil are mixed in a mixer and sent to a granulator for high temperature processing into granules . Then take 70kg of the prepared masterbatch and 10kg of foaming agent and mix them into the extruder barrel. What is extruded from the die mouth of the machine head is a gray-black rosette cylinder, which is sized, cooled and shaped, cut and shaped. The product 2 of moving bed filter material B type can be obtained, such as figure 2 As shown, its density is 0.97kg / L.

Embodiment 3

[0037] Take 60kg of polybutylene succinate with a fineness above 200 mesh, 12.5kg of hydroxyapatite, 0.5kg of molasses, 20.5kg of starch, 5.5kg of activated carbon, 0.65kg of nutrient salt (0.611kg of ferrous chloride, sulfuric acid Magnesium 0.039kg), silane coupling agent 0.65kg, polyvinyl alcohol 1.2kg, stearic acid 1.2kg, calcium chloride 1.5kg, white oil 1.0kg are mixed in a mixer, sent to a granulator for high temperature processing particulates. Then take 100kg of the prepared masterbatch, wire drawing, cold molding, cutting and setting, and then processing and drawing into a brush, you can get such image 3 The brush-shaped elastic filler shown.

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Abstract

The invention discloses a degradable bio-compatible water treatment filler which is prepared from degradable bio-compatible master batch and a foaming agent. The degradable bio-compatible master batch consists of the following components in parts by weight: 40-70 parts of degradable high polymer materials, 10-40 parts of filling materials, 10-25 parts of natural biomass powder, 1-3 parts of adsorbent, 0.5-1 part of nutritional salt, 0.5-1 part of coupling agent, 0.5-1 part of wetting agent and 3-7 parts of other additives. The particle master batch which is obtained in the preparation method of the degradable bio-compatible water treatment filler can be processed into water treatment elastic fillers of various shapes. Besides, the degradable bio-compatible water treatment filler is convenient to process, simple to use, wide in material selection, and can be adjusted differently according to different application process requirements, and therefore, the degradable bio-compatible water treatment filler is extremely wide in adaptability.

Description

technical field [0001] The invention belongs to the field of water treatment, and specifically relates to a degradable bio-affinity water treatment filler and a preparation method thereof, which are mainly used for the removal of ammonia nitrogen, phosphorus and other organic matter in biochemical aquaculture wastewater, and can also be used In other sewage treatment fields. Background technique [0002] Ammonia nitrogen is the main pollutant in aquaculture wastewater and the most difficult to remove. Its main source is residual bait and excrement of breeding objects. The most prominent harm of ammonia nitrogen to human is to make water body eutrophication and destroy the ecological balance of water body. A large amount of wastewater containing ammonia nitrogen enters the water body, and the excess plant nutrition in the water body leads to a large number of aquatic organisms, mainly a large number of algae, which makes the living space of fish smaller and smaller, affecti...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/00
CPCY02W10/10
Inventor 王吟陈翔宋奔奔吴凡
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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