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Bulking mud special fertilizer for poplar and its producing method

A special fertilizer and sludge technology, which is applied in the field of poplar special fertilizer production of expanded sludge, can solve the problems of lack of poplar special fertilizer, and achieve the effects of promoting sludge resource utilization, reducing plasticity, and shortening harvesting cycle

Inactive Publication Date: 2006-11-08
菏泽开发区曹州农用化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the study of poplar cultivation, there is a lack of research on special fertilizers for poplar under different tree ages and different afforestation methods.

Method used

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  • Bulking mud special fertilizer for poplar and its producing method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Example 1, the basic type of afforestation of young seedlings of the year

[0020] (1) Standard: organic matter ≥ 30%, N+P 2 o 5 +K 2 O≥15.0%

[0021] Heavy metals meet the requirements of GB4284-84.

[0022] (2) Formulation:

[0023] ① Sludge accounts for 41%;

[0024] ②Organic material 35%;

[0025] ③ 4% ​​compound starter;

[0026] ④ Urea 6%;

[0027] ⑤Diammonium phosphate 10%;

[0028] ⑥Potassium sulfate or potassium chloride potassium fertilizer 4%;

example 2

[0029] Example 2, 3-4 years old poplar special type

[0030] (1) Standard: organic matter ≥ 20%, N+P 2 o 5 +K 2 O≥20%, heavy metals meet the requirements of GB4284-84.

[0031] (2) Formula

[0032] ① Sludge accounts for 45%;

[0033] ②Organic materials 25%;

[0034] ③Urea accounts for 10%;

[0035] ④ diammonium phosphate accounted for 10%;

[0036] ⑤Potassium sulfate or potassium chloride potassium fertilizer accounts for 5%;

[0037] ⑥ Composite fermentation agent accounts for 5%.

example 3

[0038] Example 3, 5-7 years old poplar special type

[0039] (1) Standard:

[0040] Organic matter ≥ 20%, N+P 2 o 5 +K 2 O≥20%, heavy metals meet the requirements of GB4284-84.

[0041] (2) Formula

[0042] ① Sludge accounts for 45%;

[0043] ② Organic materials 20%;

[0044] ③Urea accounts for 12%;

[0045] ④Diammonium phosphate accounts for 8%;

[0046] ⑤ Ordinary calcium superphosphate 5%;

[0047] ⑥Potassium sulfate or potassium chloride potassium fertilizer accounts for 5%;

[0048] ⑦ Composite starter accounts for 5%.

[0049] Production method of expanded sludge poplar special fertilizer:

[0050] The sludge after detoxification by aerobic fermentation in the sewage plant is transferred to the fertilizer workshop and enters the second fermentation of aerobic decomposition in the septic tank. There is a ventilation and oxygen supply channel every 60cm in the tank, and organic materials are added. After mixing, the fermentation bacteria are inoculated and the p...

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Abstract

The fertilizer special for poplar is produced with degraded and detoxicated sludge 40-50 wt%, organic material 25-35 wt%, composite fermenting agent compounded with zymophyte and deactivator 4-5 wt% and chemical fertilizer 20-30 wt%. The production process includes: conveying aerobically fermented and detoxicated sludge of sewage treating yard to the fertilizer shop, secondary aerobically fermentation in the digestion tank with ventilation pipeline, adding organic fertilizer, inoculating composite fermenting agent to ferment at 65 deg.c and turning once each 2-3 days, adding chemical fertilizer, pelletizing in a drum and stoving. The present invention changes waste into useful material, and utilizes sludge resource fully.

Description

[0001] Field [0002] The invention relates to a fertilizer used in forestry, in particular to a special fertilizer for poplar puffed from urban sewage treatment plant sludge and a production method thereof. Background technique [0003] With the acceleration of urbanization in my country, the amount of urban sludge has increased dramatically. According to statistics, my country's urban sewage plants discharge 9 million tons of sludge every year, and the annual growth rate is 10%. How to treat and utilize sludge effectively and at low cost, turning waste into wealth has become a major problem to be solved urgently in the process of urban development. The previous methods of sludge landfilling, agricultural use, incineration, drying and heat treatment, and ocean dumping cannot finally solve the problem. In recent years, some domestic units have carried out a series of special research on sludge utilization and achieved fruitful results. East China Normal University has compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05F17/00
CPCY02A40/20Y02W30/40
Inventor 闫传胜张学锋
Owner 菏泽开发区曹州农用化学有限公司
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