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Use method and application of conditioner of tangutorum bobr oil cake to urban sludge composting

A technology of municipal sludge and conditioner, applied in sewage/sludge fertilizer, application, fertilizer made of biological waste, etc., to shorten the compost cycle, easy to collect and transport, and promote the growth of vegetation

Inactive Publication Date: 2018-10-02
南京益唯森生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the use method and application of a conditioner of Nitraria oil cake in municipal sludge composting are lacking

Method used

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  • Use method and application of conditioner of tangutorum bobr oil cake to urban sludge composting
  • Use method and application of conditioner of tangutorum bobr oil cake to urban sludge composting
  • Use method and application of conditioner of tangutorum bobr oil cake to urban sludge composting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The use method of the conditioning agent of a kind of Nitraria oil cake of the present invention in municipal sludge composting, comprises the steps:

[0025] (1) Use a self-made aerobic fermentation device and compound microbial agent, use Nitraria oil cake as a conditioning agent, and use intermittent ventilation mode to compost urban sludge; mix 3kg of sludge with 1kg of Nitraria oil cake, and add 400mL Distilled water and 0.1% compound microbial agent were mixed evenly and loaded into the aerobic fermentation device, and the composting test was started in the indoor environment.

[0026] (2) Adopt intermittent ventilation mode, ventilate for 15 minutes every 1 hour, and ventilate for a total of 5 hours every day, and measure the temperature of the pile with a thermometer every day;

[0027] (3) Take samples every 2 days to measure the moisture content, pH value, total organic carbon, total nitrogen, water-soluble organic carbon and humic acid indicators; in order to...

Embodiment 2

[0030] The difference between embodiment 2 and embodiment 1 is:

[0031] The use method of the conditioning agent of a kind of Nitraria oil cake of the present invention in municipal sludge composting, comprises the steps:

[0032] (2) Adopt the intermittent ventilation mode, ventilate for 30min every 1h, and ventilate for 5h in total every day, and measure the temperature of the pile with a thermometer every day;

[0033] (3) Take samples every 2 days to measure the moisture content, pH value, total organic carbon, total nitrogen, water-soluble organic carbon and humic acid indicators; in order to ensure the representativeness of the samples, multiple points should be sampled and mixed evenly when sampling, and a complete compost The period is 60d. The composting period is 60 days, the temperature in the high temperature period is T>50°C, lasts up to 28 days, and the pH is maintained at 7.5.

Embodiment 3

[0035] The difference between embodiment 3 and embodiment 1 is:

[0036] The use method of the conditioning agent of a kind of Nitraria oil cake of the present invention in municipal sludge composting, comprises the steps:

[0037] The use method of the conditioning agent of a kind of Nitraria oil cake of the present invention in municipal sludge composting, comprises the steps:

[0038] In step (2), adopt the intermittent ventilation mode, ventilate 20min every 1h, ventilate altogether 5h every day, measure the temperature of the heap with a thermometer every day;

[0039] In step (3), water content, pH value, total organic carbon, total nitrogen, water-soluble organic carbon and humic acid index are measured by sampling every 2 days; in order to ensure the representativeness of the sample, multiple points should be sampled and mixed evenly during sampling , a complete composting cycle is 60d. The composting period is 60 days, the temperature in the high temperature period ...

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Abstract

The invention discloses a use method and the application of a conditioner of a tangutorum bobr oil cake to urban sludge composting. The use method of the conditioner of the tangutorum bobr oil cake tourban sludge composting comprises the following steps: (1) performing urban sludge composting by using a self-made aerobic fermentation device and composite microbial agents, taking the tangutorum bobr oil cake as the conditioner and adopting an intermittent ventilation mode; (2) ventilating for 15 to 30 minutes every other 1 hour by the intermittent ventilation mode, ventilating for totally 5 hours every day, and (3) sampling every 2 days and measuring water content, pH value, total organic carbon, total nitrogen, water-soluble organic carbon and humic acid indexes, wherein multi-point sampling and uniform mixing should be conducted during sampling so as to guarantee the representativeness of the samples, and one integrated composting cycle is 60 days.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a method for using a conditioner of Nitraria oil cake in municipal sludge composting and its application. Background technique [0002] Nitraria is a famous sand-fixing plant. Nitraria fruit oil has been consumed for more than 100 years. Long-term consumption of Nitraria oil can lower cholesterol and prevent hyperlipidemia. The development of Nitraria fruit is accompanied by the production of by-product oil cake. Although a small amount of oil cake can be used as feed or fertilizer, its low nutrition, dregs, and harmful substances limit its application. How to properly dispose of Nitraria oil cake has become an environmental issue of general concern. [0003] Municipal sludge composting is an effective biotechnological treatment of sludge as a by-product of municipal sewage. However, traditional sludge composting is basically natural composting. Not only does the comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00
CPCC05F5/002C05F17/10C05F17/20C05F7/00Y02W30/40
Inventor 马烨王忠长李冬冬赵婌君
Owner 南京益唯森生物科技有限公司