Water treatment filler based on modified biomass ash and preparing method thereof

A biomass ash and water treatment technology, applied in the field of water treatment, to achieve the effect of increased specific surface area, increased surface functional groups, and good removal effect

Inactive Publication Date: 2016-12-07
SUZHOU SAIHUA INSTR CONTROL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a water treatment filler based on modified biomass ash and a preparation method thereof, and obtains a modified biomass ash water treatment filler that can be supplied by carbon sources, has a large specific surface area and rich surface functional groups, and Solve the problem of effective utilization of biomass ash and reduce the cost of water treatment at the same time

Method used

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  • Water treatment filler based on modified biomass ash and preparing method thereof
  • Water treatment filler based on modified biomass ash and preparing method thereof
  • Water treatment filler based on modified biomass ash and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A mixed solution was prepared using acetic acid and sodium alginate. The volume of water was 1 L, the volume of acetic acid was 15 mL, and the concentration of sodium alginate was 0.08 mol / L. Table 1 shows the specific specifications of biomass ash; 0.6 kg of sieved 4#, 5# and 6# biomass ash was added to the mixed solution, stirred and mixed uniformly, soaked and rinsed at 40℃, rinsed three times, after each rinse, according to the health The ratio of the material ash to the mixed liquid requires replacement of the mixed liquid; soaking for ten minutes is required before the second and third rinsing; the water treatment filler based on the modified biomass ash is obtained by drying. The modification principle is as follows figure 1 Shown. The specific surface area of ​​6 batches of water treatment filler modified by this method was measured, and the specific surface area was 3.71~5.83 m 2 / g, the average specific surface area is 4.47 m 2 / g, 20%~75% higher than before mod...

Embodiment 2

[0030] Acetic acid and sodium alginate are used to prepare a mixed solution, where the volume of water is 1 L, the volume of acetic acid is 20 mL, and the concentration of sodium alginate is 0.1 mol / L; 4# and 5# after sieving 0.6 kg respectively He 6# (Table 1) biomass ash residue was added to the mixed solution, stirred and mixed uniformly, soaked and rinsed at 35℃, rinsed three times, after each rinse, according to the biomass ash residue and the mixed solution The ratio requires replacement of the mixed liquid; soaking for ten minutes before the second and third rinsing; drying to obtain a water treatment filler based on modified biomass ash. The specific surface area of ​​6 batches of water treatment filler modified by this method was measured, and the specific surface area was 3.65~5.72 m 2 / g, the average specific surface area is 4.31 m 2 / g, 20%~75% higher than before modification. Taking the raw water of the inferior Class V river as the treatment object, the experiment...

Embodiment 3

[0032] Use acetic acid and sucrose to prepare a mixed solution, where the volume of water is 1 L, the volume of acetic acid is 15 mL, and the concentration of sucrose is 0.08mol / L; 0.6 kg of 4#, 5# and 6# are sieved separately (Table 1) Add biomass ash to the mixed solution, stir and mix evenly, soak and rinse at 40℃, rinse for three times, after each rinse, change and mix according to the ratio of biomass ash to mixed solution Soak for ten minutes before the second and third rinsing; dry to obtain water treatment filler based on modified biomass ash. The specific surface area of ​​6 batches of water treatment filler modified by this method was measured, and the specific surface area was 3.01~4.28 m 2 / g, the average specific surface area is 3.56 m 2 / g, 20%~55% higher than before modification. Taking the raw water of the inferior Class V river as the treatment object, the experiment was conducted through the combined process of simultaneous nitrogen and phosphorus removal and ...

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Abstract

The invention discloses water treatment filler based on modified biomass ash and a preparing method thereof. The preparing method includes the steps that biomass ash is added into a mixed solution according to the ratio of 0.6-1 kg of biomass ash to 1 L of mixed solution, mixed and stirred uniformly, soaked and rinsed to obtain granular water treatment filler based on modified biomass ash; the biomass ash is obtained by combusting biomass fuel, and the mixed solution contains acetic acid and organic matter. Acetic acid and organic matter are adopted to compounding and modifying the biomass ash, the specific area of the biomass ash is increased, and the number of surface functional groups is increased, which is beneficial for provides more attachment points for microorganisms and beneficial to chemisorption of nutrient substances in water; recycling of waste is achieved by adopting biomass power plant waste namely biomass ash as the raw material, the biomass ash is reasonably and effectively used, and water treatment cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of water treatment, in particular to a water treatment filler based on modified biomass ash and a preparation method thereof. Background technique [0002] Sewage biofilm treatment method is to make microorganisms such as bacteria and fungi and micro-animals such as protozoa and metazoa attach to the filter material or some carriers to grow and breed, and form a film-like biological sludge on it—— Biofilm. The microorganisms involved in water treatment need to continuously absorb the necessary nutrients, including carbon sources and nitrogen sources, from the sewage in the surrounding environment. Carbon is an important substance that composes biological cells. Microorganisms and micro-animals involved in water treatment have a large demand for carbon sources. Generally, the C / N is not less than 5. At present, industrial wastewater and part of domestic sewage have low carbon content, which cannot guarantee the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00C02F2003/001
Inventor 宋建中李飞鹏贾玉宝张增胜
Owner SUZHOU SAIHUA INSTR CONTROL CO LTD
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