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Process for producing organic potassium manure by plant planted on solid waste

A solid waste and production method technology, applied in the preparation of organic fertilizers, organic fertilizers, bio-organic part treatment, etc., can solve the problems of restricting agricultural utilization, prospecting prospects are not optimistic, and the Zn/Cu content of sludge exceeds the standard, reaching Cheap treatment of waste, reduction of heavy metal content, low cost effect

Inactive Publication Date: 2007-02-14
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the late 1950s, my country began to search for potassium resources. Although some progress has been made, there are very few potassium ore resources available for industrial development and utilization. So far, no substantial breakthrough has been made in solid soluble potassium ore resources, and the prospects for prospecting are not optimistic.
In practice, the Zn / Cu content of sewage treatment plants in Shanghai, Guangzhou, Hong Kong, Shenzhen, Taiyuan, Suzhou and other places in my country exceeds the standard, which limits its agricultural utilization.

Method used

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  • Process for producing organic potassium manure by plant planted on solid waste

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Embodiment 1

[0028] The tests of the embodiments of the present invention all adopt the undigested dewatered sludge of Guangzhou Datansha Sewage Treatment Plant, wherein the heavy metal Zn exceeds the national standard (GB4284-1984). Its specific implementation steps are:

[0029] i) Sludge from urban sewage treatment plants is directly spread on the ground with a thickness of 30cm;

[0030] ii) Selected sweet potato (Alocasia marorrhiza) seeds or seedlings, per m 2 9 plants;

[0031] iii) Yam planting method: bury the taro and roots in the mud, let the buds or above-ground parts come out of the ground, and pour appropriate water according to the water content of the waste to be processed;

[0032] iv) The processing method of the sweet potato plant is to dry or dry the above-ground part after harvesting, and pulverize through a sieve with an aperture of 2-10mm;

[0033] v) bagging after sieving to make the potassium-containing organic fertilizer of the present invention.

[0034] The ...

Embodiment 2

[0039] The tests of the embodiments of the present invention all adopt the undigested dewatered sludge of Guangzhou Datansha Sewage Treatment Plant, wherein the heavy metal Zn exceeds the national standard (GB4284-1984). Its specific implementation steps are as follows:

[0040] i) Sludge from urban sewage treatment plants is directly spread on the ground with a thickness of 40cm;

[0041] ii) Selected sweet potato (Alocasia marorrhiza) seeds or seedlings, per m 2 9 plants; Sedum sedum seedlings, per m 2 60 plants;

[0042] iii) The potato planting method: bury the taro and roots in the mud, let the buds or the aboveground part come out of the ground, intersperse and plant Sedum sedum next to the potato, and pour appropriate water according to the water content of the waste to be processed;

[0043] iv) The processing method of the sweet potato plant is to dry or dry the above-ground part after harvesting, and pulverize through a sieve with an aperture of 2-10mm;

[0044...

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Abstract

The invention relates to a method to plant on the fertilizer from solid waste. It uses the sludge from city sewage farm. The plant is Alocasia marorrhiza or Alocasia marorrhiza and Sedum alfredii H. Potassium in haulm of alocasia marorrhiza reaches to 10wt%, N, P2O5, K2O reaches to 15wt%. It is a high content natural compounding organic potassium fertilizer.

Description

[Technical field]: [0001] The present invention relates to a method for producing potassium-containing fertilizers by growing plants from solid waste. [technical background]: [0002] With industrial development and technological progress, the application of chemical fertilizers has increased year by year. By 1995, the application of chemical fertilizers had accounted for 67.8% of the nutrient input in farmland. Accompanied by the large-scale application of chemical fertilizers, a series of problems have been brought about, including the unbalanced application of nitrogen, phosphorus, and potassium fertilizers, and the insufficient application of potassium fertilizers is the most prominent problem. Insufficient potassium fertilizer input for a long time has led to aggravated soil potassium deficiency, which has seriously affected the fertilizer use efficiency and the sustainable development of agriculture. The ratio of nitrogen, phosphorus and potassium (N:P) of domestic fe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F11/00C05F17/00C05D1/00
CPCY02W30/40
Inventor 吴启堂黑亮刘小梅龙新宪
Owner SOUTH CHINA AGRI UNIV