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Nutrient for anaerobic biological treatment of organosilicon wastewater

An anaerobic biology and nutrient technology, which is applied in anaerobic digestion treatment, special compound water treatment, water/sludge/sewage treatment, etc., can solve the problem that the treatment effect of special wastewater is not very significant, limits the efficiency of anaerobic biological treatment, The anaerobic system has a long start-up period, etc., to achieve the effect of rich microbial population, dense structure, and not easy to acidify

Active Publication Date: 2018-05-04
浙江巨能环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Anaerobic biological technology is often used in the treatment of high-concentration organic industrial wastewater. This type of industrial wastewater usually contains high-concentration, refractory biodegradable, high-salinity and high-toxicity pollutants. Generally, there will be a certain period of time before the official operation of the sewage treatment system. The commissioning stage is to adapt the microorganisms in the water to the new environment and reproduce, which will inevitably bring the following disadvantages: the anaerobic system has a long start-up period, the load increase is very slow, and the cultivation and acclimation time is usually 2-6 months, which limits the scope of anaerobic biological treatment. efficiency
However, the microbial strains used in aerobic biological treatment and anaerobic biological treatment are not the same, and different microbial strains need to be added with nutrient solutions that meet their growth characteristics; similarly, wastewater in different fields also has its own complexity and particularity , the less targeted nutrients generally have no significant effect on the treatment of some special wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh NH 4 HCO 3 40g, KH 2 PO 4 10g, FeSO 4 ·7H 2 O 10g, MnSO 4 ·H 2 O 1g, Al 2 (SO 4 ) 3 18H 2 O0.6g, NiSO 4 ·6H 2 O 0.3g, CoSO 4 ·7H 2 O 0.15g, (NH 4 ) 6 Mo 7 o 24 4H 2 O 0.05g, H 3 BO 3 0.05g, add 1L of water and stir to dissolve, then add 1mol / L of H 2 SO 4 solution, adjust the pH to 2. When in use, add the prepared nutrient to the organic silicon wastewater, mix well and enter the anaerobic treatment system, and the dosing ratio is 0.5L of nutrient per cubic meter of wastewater. See Table 1 for the comparison of anaerobic treatment effects before and after adding the nutrient to a certain organosilicon wastewater.

[0023] Table 1 Comparison of anaerobic treatment effects of organic silicon wastewater before and after adding nutrients

[0024] index

[0025] It can be seen from the above table that after adding nutrients, the removal rate of COD increases by 6%, the removal rate of benzene series increases by 12%, the content o...

Embodiment 2

[0027] Weigh NH 4 HCO 3 50g, KH 2 PO 4 20g, FeSO 4 ·7H 2 O 20g, MnSO 4 ·H 2 O 2g, Al 2 (SO 4 ) 3 18H 2 O1g, NiSO 4 ·6H 2 O 1g, CoSO 4 ·7H 2 O 0.5g, (NH 4 ) 6 Mo 7 o 24 4H 2 O 0.1g, H 3 BO 3 0.1g, add 1L of water and stir to dissolve, then add 1mol / L of H 2 SO 4 solution, adjust the pH to 1. When in use, add the prepared nutrient to the organic silicon wastewater, mix well and then enter the anaerobic treatment system. The dosing ratio is 1L of nutrient per cubic meter of wastewater. See Table 2 for the comparison of anaerobic treatment effects before and after adding the nutrient to a certain organosilicon wastewater.

[0028] Table 2 Comparison of anaerobic treatment effects of organic silicon wastewater before and after adding nutrients

[0029] index

[0030]It can be seen from the above table that after adding nutrients, the removal rate of COD increases by 9%, the removal rate of benzene series increases by 9%, the content of methane ...

Embodiment 3

[0032] Weigh NH 4 HCO 3 20g, KH 2 PO 4 5g, FeSO 4 ·7H 2 O 2g, MnSO 4 ·H 2 O 0.2g, Al 2 (SO 4 ) 3 18H 2 O0.1g, NiSO 4 ·6H 2 O 0.1g, CoSO 4 ·7H 2 O 0.05g, (NH 4 ) 6 Mo 7 o 24 4H 2 O 0.01g, H 3 BO 3 0.01g, add 1L of water and stir to dissolve, then add 1mol / L of H 2 SO 4 solution, adjust the pH to 3. When in use, add the prepared nutrient to the organic silicon wastewater, mix well and enter the anaerobic treatment system, and the dosing ratio is 0.1L of nutrient per cubic meter of wastewater. The comparison of anaerobic treatment effects before and after adding the nutrient to a certain organosilicon wastewater is shown in Table 3.

[0033] Table 3 Comparison of anaerobic treatment effects of organic silicon wastewater before and after adding nutrients

[0034] index

[0035] It can be seen from the above table that after adding nutrients, the removal rate of COD increases by 5%, the removal rate of benzene series increases by 15%, the conte...

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PUM

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Abstract

The invention provides a nutritional agent for organic silicon wastewater anaerobic biological treatment, and relates to a microbial nutritional agent, in particular to an anaerobic microbial nutritional agent used in the process of treating organic silicon wastewater. According to a recipe of the nutritional agent, the following ingredients in proportion by weight are contained in per liter of water: 20 to 50g of NH4HCO3, 5 to 20g of KH2PO4, 2 to 20g of FeSO4 7H2O, 0.2 to 2g of MnSO4 H2O, 0.1 to 1g of Al2(SO4)3 18H2O, 0.1 to 1g of NiSO4 6H2O, 0.05 to 0.5g of CoSO4 7H2O, 0.01 to 0.1g of (NH4)6Mo7O2 4H2O and 0.01 to 0.1g of H3BO3. When being used, the nutritional agent has the advantages that the microbial populations are rich; the activity is high; the anaerobic sludge granulation effect is good, so that the anaerobic treatment efficiency is high; the load impact resistance capability is high; the removal rate of COD and benzene series is high.

Description

technical field [0001] The invention relates to a microbial nutrient, in particular to an anaerobic microbial nutrient in the process of treating organic silicon wastewater. Background technique [0002] Anaerobic biological technology is often used in the treatment of high-concentration organic industrial wastewater. This type of industrial wastewater usually contains high-concentration, refractory biodegradable, high-salinity and high-toxicity pollutants. Generally, there will be a certain period of time before the official operation of the sewage treatment system. The commissioning stage is to adapt the microorganisms in the water to the new environment and reproduce, which will inevitably bring the following disadvantages: the anaerobic system has a long start-up period, the load increase is very slow, and the cultivation and acclimation time is usually 2-6 months, which limits the scope of anaerobic biological treatment. efficiency. At the same time, the anaerobic bioc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F101/30
CPCC02F3/28C02F2101/30C02F2305/06
Inventor 严月根凌明叶国祥刘荣华郭慧李婷
Owner 浙江巨能环境工程有限公司