CN1459439A

CN1459439A - City sludge biofertilizer

Info

Publication number: CN1459439A
Application number: CN02117359A
Authority: CN
Inventors: 沙殿君; 董志斗; 王滨蓉; 林雁飞; 黄金文
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-20
Filing date: 2002-05-20
Publication date: 2003-12-03
Anticipated expiration: 2022-05-20
Also published as: CN1288115C

Abstract

A biologic fertilizer for activating microbes, loosening soil, decomposing the residual chemical fertilizer, agricultural chemicals and heavy metals, and increasing the yield of agricultural crops is prepared through culturing yeast, mixing it with rice husk, brown sugar and shale powder, adding the mixture to city sludge, stirring, stacking for fermenting for 5-7 days while re-stacking once per day and adding calcium perphosphate, adding N and K fertilizers, stirring and granulating, and packaging for storing.

Description

City sludge biofertilizer

Affiliated technical field

The present invention relates to a kind of city sludge biofertilizer, belong to the bio-feritlizer technical field.

Background technology

At present, known farm crop fertilizer, most of chemical fertilizer that uses.Over past ten years, total consumption of China's chemical fertilizer has increased by 90.7%, and the ultimate production of grain only increases by 9.1%, and the chemical fertilizer usage quantity of unit surface is the U.S. and world average level 1.6 times, the rate of loss of chemical fertilizer is up to 45%, this chemical fertilizer that just means use is many more, and the financial loss that causes is just big more, and environmental pollution is just serious more, because life-time service chemical fertilizer, agricultural chemicals, make soil compaction, soil fertility descends, and has had a strong impact on soil environment quality and crops quality.The heavy metal contamination of current China soil, Organic pollutants, agrochemicals are polluted, agricultural chemicals is residual in the soil, cause the dna mutation of some insects, bacterium, cause the disease and pest aggravation, cause the quality and yield of agricultural-food to descend, having a strong impact on the environmental quality of China, food safety and people ' s health.

The purpose of this invention is to provide a kind of city sludge biofertilizer; it utilizes specific enzymatic microorganism micropopulation and city oxidation pond mud and municipal wastes, and relevant matrix such as agriculture and animal husbandry waste is produced bio-fertilizer, and its fertilizer efficiency is outstanding; scientific formulation; can solve the Municipal waste utilization, protect ecotope again, can administer soil compaction; increase soil fertility; reducing pest disaster, can increase crop yield again and improve crops quality, is a kind of nuisanceless, free of contamination bio-feritlizer.

Summary of the invention

A kind of city sludge biofertilizer of the present invention is by following component formulated (weight percent)

Enzymatic microorganism 2-2.3% shale powder 4.2-4.5%

Rice bran 24-28% brown sugar 4.2-4.5%

Mud 38-42% nitrogen, phosphorus, potassic fertilizer 23-27%

A kind of city sludge biofertilizer of the present invention, its preparation technology:

1, raw material choice: the product that rice bran is wanted new production and taken good care of, do not lump, not mouldy; The cation exchange capacity of shale powder (CEC) is necessary 〉=and more than 80, heavy metal content meets the agricultural fertile content standard of country.(for details see attached table two)

2, processing condition: under the good oxygen condition of lucifuge, in situ temperature can not be lower than 15 ℃, and humidity is 30-45%; Leavening temperature is 45 ℃-70 ℃.Every day, thermometric was 6 times; Yeast phase is 5-7 days; Every day, collapse of setting was 1 time.

3, technical process: after the former enzymatic microorganism enlarged culturing, join in rice bran, brown sugar, the shale powder, after stirring, join in the mud, after fully stirring again, the piling fermentation, in the fermenting process every day collapse of setting 1 time, when collapse of setting, add calcium superphosphate, after 5-7 days, it is thick that product is, and has a large amount of white hyphas to roll into a ball and occur, and the oxidation pond peculiar smell is eliminated, just reach abundant attenuation degree, after fermenting, stir and make particle, at last the packing warehouse-in.

The beneficial effect of city sludge biofertilizer of the present invention is: this bio-fertilizer adopts the ferment bacterium biological technology, has very strong aerobic fermentation capacity of decomposition, can activate microorganism, strengthen its breeding, the breeding of profitable strain raised growth, become the dominant microflora in the soil, the energy chessom, strengthen soil fertility, effectively control or give the generation of diseases prevention plague of insects evil, improve, can decompose and eliminate chemical fertilizer in the soil because of using the situation of chemical fertilizer soil compaction, the lead that agricultural chemicals etc. are residual, mercury, arsenic, cadmium, toxin such as sodium, improve the nutritional condition of farm crop, the nutrition that is cured in the solubilized soil, the permeability and the preserve moisture and fertility ability of enhancing soil, improve ground temperature, prevent the soil salinization, have short precocious, expelling parasite, sterilization improves the disease-resistant of farm crop, degeneration-resistant, resistant to lodging, cold-resistant ability, reach nuisanceless, pollution-free, can make above (for details see attached table-) subordinate list one bio-fertilizer of increasing crop yield 15-30% and fertilizer efficiency contrast table

Varieties of plant	The fertile kind	Mu consumption (kilogram)	Per mu yield (kilogram)	Units increased in production %
Varieties of plant	The fertile kind	Mu consumption (kilogram)	Per mu yield (kilogram)	Units increased in production %	Beet	Bio-fertilizer	????27	????1890	????24.3
Diamines	????25	????1520				Bio-fertilizer	????27	????1890	????24.3
Diamines	????25	????1520		Soybean		Bio-fertilizer	????30	????285	????15.3
Diamines	????12	????247				Bio-fertilizer	????30	????285	????15.3

Description of drawings

Fig. 1 is the technological process of production figure of city sludge biofertilizer of the present invention.

Embodiment

City sludge biofertilizer of the present invention is by following component formulated (weight part)

Embodiment one

43.2 kilograms of 21.6 kilograms of shale powder of enzymatic microorganism

43.2 kilograms in 260 kilograms of brown sugar of rice bran

250 kilograms in 432 kilograms of nitrogen of mud, phosphorus, potassic fertilizer

Embodiment two (beet fertilising proportional quantity)

43.2 kilograms of 21.6 kilograms of shale powder of enzymatic microorganism

43.2 kilograms in 260 kilograms of brown sugar of rice bran

100 kilograms in 432 kilograms of nitrogenous fertilizer of mud

80 kilograms in 70 kilograms of potash fertilizer of phosphate fertilizer

Embodiment three (soybean fertilization proportional quantity)

43.2 kilograms of 21.6 kilograms of shale powder of enzymatic microorganism

43.2 kilograms in 260 kilograms of brown sugar of rice bran

60 kilograms in 432 kilograms of nitrogenous fertilizer of mud

70 kilograms in phosphate fertilizer 120 kg potash fertilizer

City sludge biofertilizer of the present invention, its preparation technology is as follows:

1, raw material choice: the product that rice bran is wanted new production and taken good care of, do not lump, not mouldy; The cation exchange capacity of shale powder (CEC) is necessary 〉=and more than 80, heavy metal content meets the agricultural fertile content standard of country (for details see attached table two)

2, processing condition: under the good oxygen condition of lucifuge, in situ temperature can not be lower than 15 ℃, and humidity is 30-45%; Leavening temperature is 45 ℃-70 ℃, and every day, thermometric was 6 times; Yeast phase is 5-7 days; Every day, collapse of setting was 1 time.

3, technical process: after the former enzymatic microorganism enlarged culturing, join in rice bran, brown sugar, the shale powder, after stirring, join in the municipal sludge, after fully stirring again, the piling fermentation, in the fermenting process every day collapse of setting 1 time, when collapse of setting, add calcium superphosphate; After 5-7 days, it is thick that product is, and has a large amount of white hyphas to roll into a ball and occur, and the oxidation pond peculiar smell is eliminated, and makes it reach abundant attenuation degree, adds an amount of nitrogenous fertilizer and potash fertilizer, after fermenting, stirs and make particle, and packing is put in storage at last.

Because prescription rationally, solved-straight pendent intestinal bacteria, roundworm egg, the difficult problem that heavy metal content exceeds standard, enzymatic microorganism is in the municipal sludge fermenting process, the organic part of municipal sludge is as the growing environment of bacterium, the flora procreation of in the environment of organic matter, growing, carrying out biological mutual conversion simultaneously, this conversion is called as decomposition reaction, this reaction is an exothermic process, one gram bacterium can produce 6.3 kilojoule heats, therefore in the fermenting process temperature up to 70 ℃, intestinal bacteria and roundworm egg there is certain killing action, thereby the killing rate of roundworm egg can be reached 96%, the intestinal bacteria killing rate reaches more than 90%, the reaction of protein denaturation in the fermenting process has effectively reduced heavy metal content, makes heavy metal content reach standard-required (for details see attached table two) the subordinate list two test report subordinate lists of product

Sequence number	Test event	Unit	Standard-required	Test result
Sequence number	Test event	Unit	Standard-required	Test result	????1	Living bacteria count	Individual/g	??≥100000000	??110000000
????2	Induced worm egg death rate	????％	????≥95	??96	????1	Living bacteria count	Individual/g	??≥100000000	??110000000
????2	Induced worm egg death rate	????％	????≥95	??96	????3	Colititre	Individual/100g	????≤1000	??1000
????4	Mercury and compound (in Hg)	????mg/kg	????≤5	??0.095	????3	Colititre	Individual/100g	????≤1000	??1000
????4	Mercury and compound (in Hg)	????mg/kg	????≤5	??0.095	????5	Cadmium and compound (in Ca)	????mg/kg	????≤3	??1.2
????6	Chromium and compound (in Cr)	????mg/kg	????≤70	??45.6	????5	Cadmium and compound (in Ca)	????mg/kg	????≤3	??1.2
????6	Chromium and compound (in Cr)	????mg/kg	????≤70	??45.6	????7	Arsenic and compound (in As)	????mg/kg	????≤30	??16.7
????8	Lead and compound (in Pb)	????mg/kg	????≤60	??32.1	????7	Arsenic and compound (in As)	????mg/kg	????≤30	??16.7

The using method of city sludge biofertilizer: be mainly used in the base fertilizer of farm-forestry crops such as grain, vegetables, flowers, forest, using for the first time can be by every mu of ground 25-30 kilogram, and amount of application can successively decrease year by year according to the soil fertility situation.

Claims

1, a kind of city sludge biofertilizer is characterized in that: it is by following each component formulated (weight percent):

Enzymatic microorganism 2-2.3% shale powder 4.2-4.5%

Rice bran 24-28% brown sugar 4.2-4.5%

Municipal sludge 38-42% nitrogen, phosphorus, potassic fertilizer 23-27%

2, the preparation technology of a kind of city sludge biofertilizer according to claim 1 is characterized in that:

A. raw material choice: the product that rice bran is wanted new production and taken good care of, do not lump, not mouldy; The cation exchange capacity of shale powder (CEC) is necessary 〉=and more than 80, heavy metal content meets the agricultural fertile content standard of country;

B. processing condition: under the good oxygen condition of lucifuge, in situ temperature can not be lower than 15 ℃, and humidity is 30-45%; Leavening temperature is 45 ℃-70 ℃, and every day, thermometric was 6 times; Yeast phase is 5-7 days; Every day, collapse of setting was 1 time;

C. technical process: after the former enzymatic microorganism enlarged culturing, join in rice bran, brown sugar, the shale powder, after stirring, join in the municipal sludge, after fully stirring again, the piling fermentation, in the fermenting process every day collapse of setting 1 time, when collapse of setting, add calcium superphosphate; After 5-7 days, it is thick that product is, and has a large amount of white hyphas to roll into a ball and occur, and the oxidation pond peculiar smell is eliminated, and just reaches abundant attenuation degree, adds an amount of nitrogenous fertilizer and potash fertilizer; After fermenting, stir and make particle, at last the packing warehouse-in.