CN1312239A

CN1312239A - Practical continuous production process of compound fertilizer and mixed fertilizer with city domestic refuse

Info

Publication number: CN1312239A
Application number: CN99127703A
Authority: CN
Inventors: 黄中杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-21
Filing date: 1999-12-21
Publication date: 2001-09-12

Abstract

The present invention is application to continuous treatment of urban house refuse, and is characterized by making waste obtain resonable balance utilization. The organic compound fertilizer is prepared by combined method for example phosphoric acid-ammonia method and potassium dihydrogen phosphate-ammonia method. Said invention has no secondary pollution.

Description

Domestic waste is continuous, is suitable for to be shaped on machine composite fertilizer, compound fertilizer method

The invention belongs to and utilize the urban life rubbish utmost point,, can form to continuous effective the compoiste fertilizer of certain standard, mixed organic manure through special processing as raw material.Both can solve secondary pollution turns waste into wealth, and can handle the usability methods of the domestic refuse that must handle every day in the city again according to planning capacity immediately.(production cycle is in 24 hours)

Present method is adapted to the processing of any domestic waste.

Domestic waste is the problem that any urban development must solve, along with the progress of society, the raising of environmental requirement, the direct landfill of out of date, even heap to abandon way be definitely impracticable.And the screening that carry out in some place, compost (sending out alcohol) method is taken up an area of greatly, the time is long, can not in time handle the municipal wastes that must handle every day continuously; Naturally burning also relates to the stationary furnace size, and natural effect is poor, does not catch up with the excretion of urban development, can perform practically no function.

Present method is based on biological natural circulation utilization, is aided with present mature chemical production way, from the reasonable balance of comprehensive utilization angle, coordinate mutually, reach non-secondary pollution, come in nature, also, help nature again, and the energy serialization is to the processing of municipal wastes in nature.Accomplish that both cost was low, be suitable for again.

The domestic waste that each large, medium and small city of China dumps every day is in hundred million tons, and consumption is also progressively increasing.This has caused occupation of land, pollution, processing fund, the enormous pressure of aspects such as treating method for various places government, society!

Adopt this law, the effect that obviously addresses the above problem is just arranged, and use properly, will under the minimum spending, deal with problems from biochemical naturally development to greatest extent.

To handle 10,000 tons of small city destructor plants year, behind the certain amount of money of investment, can form manually expenses such as place, facility, handling in addition, annual meter is hundreds thousand of, if can just reduce by 40% occupation of land with wherein 40% becoming fertilizer, and can increase by 40% sale price of measuring, 10,000 tons is 4 kilotons, from sale price with 100 yuan of calculations with regard to 400,000 yuan, 400,000 derating is also just arranged, if use well, also has the bigger amount of money; If can the Coordination Treatment amount, obtain benefit production surely!

To saving your breath, progressively improve recovery benefit way by this, both reduced occupation of land, input can be reduced to greatest extent again, and the environmental protection non-secondary pollution can be accomplished, be that an investment risk is little, have the way of actual effect.

Because itself forms composite fertilizer in synthetic, adds organism again and can be called compoiste fertilizer, mixed organic manure with its implication.

Present method process is:

One, screening

A: sterilization (adding of germicide or sterilant) for the first time

B: vibratory screening apparatus nature sorting size, after use other facility separating plastic iron block etc. again.

C: sieve: use the pulverizer of special type that organism was pulverized certain order number sieve.

Two, sterilization: increase fertility with chemical reaction, the synthetic processing.

1, according to crossing the calcium method, city sulfur waste acid is adjusted to diluted acid, quantitatively adds organism and sieve rubbish, with strong acid sterilization, sterilization, this sterilization can all be killed as bacterium such as intestinal bacteria.Dioxins also can decompose.After add reciprocity ground phosphate rock and formed calcium class reaction.Present method be preferably dilute sulphuric acid (hydrochloric acid, disappear acid all can), moisture content is big, can form suspended organic matter, thus partly silt separately, improves organic content.

2, will be with the organic and inorganic calcium compounds of crossing of tart, and cross and leak, dewater, with useless ammonia, salkali waste potassium water (as not having useless available liquid by alkali potassium), it is neutral adjusting pH value.Promptly form the composite fertilizer of certain content.To calculate input with interpolation as calibrating criterion, reach trim point, be ideal data.

Certainly, organism is high more, good sorting, and its effect is just good more.

Country does not form standard as yet to organic compound fertilizer at present.Can carry out provincial standard with reference to local condition, as: inorganic three no content 15%, organism 80%.

Three, as with organism by the inorganic reaction of interpolation again of sending out earlier alcohol after effect substantially, reason is that organic bacterium field will be killed.

Four, the compoiste fertilizer (compound fertilizer) after synthetic is because after in thermal response, can spontaneous fermentation, as it is proper to add bacterial classification, can improve organic effective force.

Example 1:

With 1 ton of municipal wastes, residue was about 0.8 ton after sorting was sieved, and wherein silt 50%.Organism is 0.4 ton, adds 40 kilograms of calcium superphosphate after decomposing with quantitative diluted acid sterilization, forms about 0.5 ton of mixed organic manure, (isolating 0.4 ton of silt), add useless ammonia again, quantitatively neutralization, the mixture of formation organism and phosphorous acid composite fertilizer, quantitatively vitriolate of tartar is Nitrogen, Phosphorus and Potassium in addition, calculate as accurate 15% of the Nitrogen, Phosphorus and Potassium of adding of sighting target, roughly should add 200 kilograms in ground phosphate rock, sulfuric acid folding hundred is calculated 85 kilograms, 600 kilograms of well-graded organism, other adds 100 kilograms of vitriolate of tartar.

According to above calculating, produce 1 ton of 15% inorganic content ternary fertilizer, use 1.5 tons in rubbish, husky 600 kilograms of spoil disposal.

Example 2:

Above way is as adding excessive sulfur waste acid, and it is comprehensive again to add useless potash again, forms organism and potassium primary phosphate ammonia mixture.Vitriolate of tartar can deduct for 100 kilograms.Still form the ternary compoiste fertilizer.

Example 3: add inorganic ternary fertilizer again as 50% silt is directly sneaked into organism.The amount of toppling over can be reduced, but fertility can be reduced.As going up routine constant rate, wherein 60% organism just is 60% organism silt mixture.

Because relate to the market effect and the use problem of compoiste fertilizer, this method utilization is handled well, but market is inevitable restricted.

Claims

Domestic waste connects speed, is suitable for its feature of system mixed organic manure (composite fertilizer) and divides the following aspects:

1, the screening unification of domestic waste is sieved (comprising pulverizing).
2, will screen thing (unified sieve back), with strong acid (spent acid comprises sulfuric acid, hydrochloric acid, nitric acid) sterilization and disinfection, after used the calcium working system, it is suitable to add ground phosphate rock, generates calcium.Carry out neutralization reaction with useless ammonia (ammoniacal liquor, liquefied ammonia or potash) again, generate organism, silt and phosphoric acid one ammonia, mixed organic manure, (wherein being with the binary inorganic composite fertilizer).
3, the interpolation ternary is not enough partly an amount of as vitriolate of tartar or Repone K on above basis, is ternary mixed organic manure (band inorganic composite fertilizer) just.
4, for improving the quality, strong acid can be adjusted to the great diluted acid of moisture content, carry out silt and organism sorting.Can select organism more than 90% earlier, the back be crossed and is leaked, dewaters, and adds according to ratio with ground phosphate rock again, forms calcium.After carry out ammonia neutralization or potash neutralization, form organism and inorganic composite fertilizer, compound fertilizer.

As reach the Nitrogen, Phosphorus and Potassium standard, and add not enough partly (neutrality), be the ternary mixed organic manure of certain content.

More than 1,2,3,4 standard can adjust formulation voluntarily not having under the unified standard.
5, the mixed organic manure after will neutralizing is stacked again, bacterial classification sends out alcohol.Effect is better.
6, present method is in the garbage treatment, use in sophisticated acid, the alkali and principle, (wherein the strong acid effect is more much better than highly basic (as lime)), in conjunction with producing inevitable acid, alkali N-process with composite fertilizer (inorganic), reach sterilization, sterilization again, building up fertility reaches certain standard (as Nitrogen, Phosphorus and Potassium 15% standard), speed with the chemical industry building-up process, the sterilize utilization of effective combined organic, instant, fast processing municipal wastes form the compoiste fertilizer that nature needs.Add adjustment, up to standard again.As the interpolation of ternary inorganic content 15%, as long as calculate the molecular weight of inorganic chemical industry, neutralization reaction is calculated addition and is suitably got final product.