ES2373301A1 - Fertilizer composed of cement and organic matter. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Fertilizer composed of cement between 25 and 75% by weight and organic matter between 25 and 75% by weight. The fertilizer is composed of cement of addition or common cement (cement of low resistance) and organic matter, coming from sewage sludge from wastewater treatment plants, sludge from treatment plants for drinking water, organic waste from urban solid waste treatment plants, organic waste from livestock, organic waste from agriculture, compost or peat. The fertilizer may contain additives between 0.01 and 10% by weight: fly ash combustión from thermal power plants, solid combustión ash from thermal power plants, blast furnace slag, steel slag, slaked lime, quarry waste, waste from crushing plants and waste from asphalt agglomerate manufacturing plants. (Machine-translation by Google Translate, not legally binding)

Description

Fertilizer material comprising cement and organic

Field of the Invention

The present invention is a fertilizer that is used in the agricultural sector. Other relevant sectors for the Present invention are: construction materials sector (cement, aggregates) and waste disposal and recovery sector organic wastewater or waste treatment plants urban solids.

Background of the invention

The fertilizer compounds described in the present invention are low quality cements and organic matter from wastewater treatment plants, Drinking water treatment stations and treatment plants of solid urban waste.

Low quality cements, too called "additive cements" and "common cements" according to the 2008 Cement Reception Document, they are the least resistance they provide to concrete and are those of common use in Small civil or building works. Low cements quality have a lower cost than cements with characteristics special and although they meet the important specifications, they have Some small deviation in the secondary specifications. The Portland cements without additions, or with special features, as high resistance, sulfate resistant, setting Fast, low heat hydration, etc. are used preferably in important civil works, such as dams, bridges, highways, unique structures, tall buildings, foundations, etc.

Description of the invention

The present invention is a fertilizer, which understands

a) cement between 25 and 75% by weight and

b) organic matter between 25 and 75% by weight selected from the group consisting of sewage sludge sewage, sludge from water treatment stations Drinking, organic waste from waste treatment plants urban solids, organic livestock waste, organic waste agriculture, compost and peat,

where the sum of said percentages does not exceed 100%

A preferable embodiment is the fertilizer of the invention, wherein said cement is an addition cement or cement common.

In the present invention, it is understood by "addition cement" or "common cement" to a cement of Quality and low resistance. It is the cement with the least resistance provides concrete, and it is commonly used in small civil or building works.

One embodiment is the fertilizer invention, further comprising additives between 0.01 and 10% by weight selected from the group consisting of fly ash combustion of thermal power plants, solid combustion ashes of thermal power plants, blast furnace slags, slags steelworks, lime off, quarry waste, plant waste of crushing and waste from agglomerate manufacturing plants asphalt A preferable embodiment is the fertilizer of the invention, where said thermal power plants are selected from the group composed of coal, fuel, gas and cycle thermal power plants combined.

Waste from manufacturing plants asphalt agglomerates that are used in the present invention they can be the residual products of the combustion of the fuel for dry aggregates, aggregates contaminated by excess clay and limestone dust product of the previous screening of aggregates in the head of the plant.

The fertilizer with 25% content in Cement can be applied in growing plants with periods long vegetatives, of the order of 7 to 8 months, such as cereals winter and legumes, where fertilizer can be absorbed in a long period

The fertilizer with 50% content in Cement can be applied in growing plants with periods medium vegetative, of the order of 4 to 5 months, such as cereals spring, or in orchard crops and in most of the greenhouse.

The fertilizer with 75% content in Cement can be applied in growing plants with periods short vegetative plants, of the order of 2 to 3 months, as occurs in plants of fast growing orchard in greenhouses and flowers and ornamental plants in gardening. In the latter the subscription must be absorbed by the plant in a short time.

Therefore, a preferable embodiment is the use of the fertilizer of the invention for the cultivation of cereals, legumes, fruit trees, flowers and ornamental plants.

Another preferred embodiment is the use of fertilizer of the invention for the cultivation of plants in greenhouse or garden.

Preferred Modes

Example one

Fertilizer preparation

The following compositions were prepared:

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TABLE 1 Composition of fertilizers

one

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In the preparation of the three fertilizers A, B and C a common cement with Clinker value (K) was mixed between 65 and 79 and a 28 day resistance of 32.5 N / square millimeter with a commercial compost containing herbaceous peat in 90 to 95%, calcium carbonate or calcium chloride, of the order of 4 to 9% and fertilizer NPK complex order of 1%. In the mixture a mixer was used conventional and the mixture was kneaded for 1 minute. The product Finished was stored in ships. Before you load it in bulk or bagging it went through a rotating mill so that the size of the product in powder form or in granules of 1 to 2 cm, depending on the Type of crop.

Example 2

Plant cultivation

Several plants have been grown in the greenhouse using fertilizer B (50% cement and 50% compost): beans, Lentil, chickpea, sunflower, watermelon, wheat, pumpkin, garlic, radish, Melon, corn, custard apple and chestnut.

In general crops with fertilizer B They have greater development than those without this product. In The following tables shows the height, number of sheets and number of stems of some of the plants grown absent and presence of fertilizer B.

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TABLE 2 Results of lentil cultivation at 5 weeks

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TABLE 3 Results of bean culture at 5 weeks

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TABLE 4 Watermelon culture results at 7 weeks

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TABLE 5 Garlic culture results at 6 weeks

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TABLE 6 Results of wheat cultivation at 5 weeks

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TABLE 7 Results from maize at 4 weeks

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Claims (6)

1. Fertilizer, which comprises a) cement between 25 and 75% by weight and b) organic matter between 25 and 75% by weight selected from the group consisting of sewage sludge sewage, sludge from water treatment stations Drinking, organic waste from waste treatment plants urban solids, organic livestock waste, organic waste agriculture, compost and peat, where the sum of said percentages does not exceed 100%

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2. A fertilizer according to claim 1, where said cement is an addition cement or common cement. 3. A fertilizer according to claims 1 or 2, further comprising additives between 0.01 and 10% by weight selected from the group consisting of fly ash of combustion of thermal power plants, solid ashes of combustion of thermal power plants, blast furnace slags, slags of steel, lime off, quarry waste, waste from crushing plants and waste from manufacturing plants asphalt agglomerates. 4. A fertilizer according to claim 3, where said thermal power plants are selected from the composite group by coal, fuel, gas and cycle thermal power plants combined. 5. Use of fertilizer according to any of the claims 1 to 4 for the cultivation of cereals, legumes, Fruit trees, flowers and ornamental plants. 6. Fertilizer use according to any of the claims 1 to 4 for the cultivation of greenhouse plants or Orchard