Method for preparing flower organic slow-release fertilizer by utilizing municipal sludge

A technology of urban domestic sludge and slow-release fertilizer, which is applied in the preparation of organic fertilizers, organic fertilizers, sewage/sludge fertilizers, etc., can solve the problems of increased production costs, incomplete decomposition, and increased costs, and achieve cost savings, Ease of packaging, transportation and use
CN101712579BInactive Publication Date: 2012-09-19珠海市园艺研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
珠海市园艺研究所
Publication Date
2012-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for preparing a flower organic slow-release fertilizer by utilizing municipal sludge, comprising the following steps of: airing and dewatering raw sludge, crushing, adding microbes and dilatants, stack retting and fermenting, baking, crushing, sieving, adding inorganic fertilizers, pelleting, baking for the second time, cooling, sieving and metering packaging. The method for preparing the flower organic slow-release fertilizer by utilizing the municipal sludge has simple production process and low production cost and comprehensively utilizes municipal sewage totreat generated sludge, i.e. turns harm into good and changes waste into valuable, thereby realizing sludge reduction, harmlessness and reclamation. The invention provides an effective technical method and way.
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Description

technical field

[0001] The invention relates to a method for making organic slow-release fertilizer for flowers, in particular to a method for making organic slow-release fertilizer for flowers by using urban domestic sludge. Background technique

[0002] The fertilization of flowers is a big problem, not only to meet the most basic needs of nitrogen, phosphorus and potassium, but also to match a variety of trace elements to ensure the normal growth of plants. Most of the existing organic slow-release fertilizers for flowers use livestock and poultry manure, bean cakes, and sesame cakes as raw materials. The production process is very complicated, and the production cost is correspondingly increased. Coating material, after wrapping, the inorganic nutrients of the fertilizer will take effect more slowly than ordinary inorganic slow-release fertilizers, and the decomposition and release of organic nutrients will be greatly hindered. The test shows that adding a coating is sup...

Claims

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