CN1793313A

CN1793313A - Process and apparatus for supplying environment protection Spirulina ultivating carbon source

Info

Publication number: CN1793313A
Application number: CN 200510107232
Authority: CN
Inventors: 梁建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-01
Filing date: 2005-12-01
Publication date: 2006-06-28

Abstract

The invention relates to an environmental protection type spiral alga breeding carbon source replenishing method and its device. Its main features are as follows: adopting carbon dioxide gaseous fertilizer replenishing method in breeding and drying course; and adding corresponding device; the carbon dioxide gaseous fertilizer is waste flue gas, injected spiral alga raising pond after purifying; the device includes waste gas collecting purifying device, booster pump, surge tank, and carbon dioxide gas injecting device. The invention fully utilizes waste flue gas to form carbon dioxide gaseous fertilizer and uses to replenish carbon source. Thus it can effectively solve the problem of atmospheric and water source pollution. The replenishing course is simple and safe. Thus it can improve growth condition for spiral alga, increase product quality and quantity, and greatly reduce breeding cost.

Description

Environment-friendly type spirulina breeding carbon source compensation process and device

Technical field

The invention belongs to the biological culture production technical field, is a kind of environment-friendly type spirulina breeding carbon source compensation process and device with environmental protection efficacy.

Background technology

Spirulina is a kind of photosynthetic autotrophs biology, it is a raw material with carbonic acid gas, inorganic salt and water, by means of chlorophyll, catching sunlight is the energy, synthetic carbohydrate, amino acid, lipid acid and multivitamin, its pharmaceutical use and edibleness more and more are subjected to society and pay attention to, and product consumption is also increasing.The basic production method of present domestic spirulina mainly contains two kinds, and a kind of is to utilize in natural alkaline lake and the lake nutritive substance of self to produce spirulina.Though this method production cost is lower, limited by the region, production efficiency is low, far can not satisfy growing social demand.Simultaneously, because the lake self-pollution, the spirulina of production is impure, the quality product that influence is made, deficiency in economic performance.

Another kind of production method is to build circulating culturing pool, at first drops into nutrient solution and algae kind in the pond, and nutrient solution is by sodium bicarbonate and water preparation.In the growth of spirulina platensis process, constantly add sodium bicarbonate carbon source fertilizer and the microelement fertilizer that contains elements such as nitrogen, phosphorus, potassium, magnesium, zinc, after the spirulina maturation, circulate and gather, filter, dry, promptly can be used as pharmacy and raw materials of food processing product and sell.In breeding process, spirulina growth is grown the energy needed material and is mainly come from biological photosynthesis, and carbonic acid gas is the topmost raw material of biological photosynthesis.If the carbonic acid gas deficiency occurs, will influence biological photosynthetic carrying out, hinder spirulina growth, reduce output significantly.Therefore, enrich carbonic acid gas in the SPIRULINA CULTIVATION pond, to promoting the photosynthetic generation of spirulina, increase output, the quality of improving product is very important.In existing method, generally be in the aquaculture water of spirulina, constantly to add a large amount of sodium bicarbonates as carbon source fertilizer.And after sodium bicarbonate used, carbonic acid gas was wherein absorbed by growth of spirulina platensis, and the pH value of aquaculture water is constantly given birth to high, when pH value rises to 10 when above, will have a strong impact on spirulina growth.Existing treatment process of culturing generally is that the microelement fertilizer that applies elements such as containing nitrogen, phosphorus, potassium, magnesium, zinc promotes spirulina growth and reduces pH value, but because residual sodium ionic effect, the saltiness of aquaculture water is increased, be unfavorable for spirulina growth.When the saltiness in the cultivation pool increases to 1 ‰, aquaculture water then can not continue to use, water in the cultivation pool need be carried out the periodicity discharging changes, and contain a large amount of sodium ions and various microelement fertilizer in the waste water of discharging, not only the water source of flowing through is caused severe contamination, and cause the waste of microelement fertilizer.The R﹠D institution that has once tested to inject with liquid carbon dioxide gasification and substituted sodium bicarbonate in the cultivation pool, but therefore method makes production cost too expensive and can't promote the use of, and has also increased the unsafe factor in producing simultaneously.In addition, in the drying process of spirulina, main component is a carbonic acid gas in the coal-fired heating installation of used oven dry-hotblast stove tail end discharged flue gas, also has objectionable impuritiess such as sulphur, arsenic, dust.The way of present most of plant is coal-fired flue-gas directly to be discharged in the atmosphere or after simple dedusting discharge, and still ambient atmosphere is polluted.As standard emission abatement in accordance with regulations, then need the cost of both expensive to set up huge purification dust removal system, be difficult for being the employing of spirulina breeding place.

Summary of the invention

The purpose of this invention is to provide a kind of useless flue gas that the carbonaceous material burning produces in the spirulina drying process that utilizes, after collection and purification, directly inject and culture the pond as CO 2 gas fertilizer, realization improves the spirulina growth condition, improve production efficiency and product quality is eliminated waste gas in the production process, waste water environment-friendly type spirulina breeding carbon source compensation process and the device to pollution of waterhead on every side and topsoil.

Realize that the technical scheme that purpose of the present invention is taked is: in spirulina breeding, drying process, adopted CO 2 gas fertilizer carbon source compensation process, and increased corresponding device thereof, used CO 2 gas fertilizer is from the useless flue gas that burning carbonaceous material produces in the spirulina drying process, wherein, the carbon source compensation process comprises following step:

(1) by the gas sampling refining plant to the useless flue gas of spirulina drying plant discharging collect, desulfurization, dearsenification, udst separation, the preparation CO 2 gas fertilizer;

(2) after the CO 2 gas fertilizer that is produced by useless gas cleaning is passed through the topping-up pump supercharging, send surge tank to, make air pressure obtain buffering, can execute dispensing device by carbon dioxide and inject in the SPIRULINA CULTIVATION pond;

(3) in the growth of spirulina platensis growth course, detect the aquaculture water situation at any time, constantly throw in good time and contain the microelement fertilizer of elements such as nitrogen, phosphorus, potassium, magnesium, zinc and execute the carbon dioxide injection gaseous fertilizer, the carbon source fertilizer of aquaculture water and pH value are regulated and control at optimum range.

(5) sophisticated spirulina is in time circulated gather, filter, drying, simultaneously in drying process by the useless flue gas of the continuous collection and purification of gas sampling refining plant, preparation CO 2 gas fertilizer.

In the present invention, the device of realizing environment-friendly type spirulina breeding carbon source compensation process is by the gas sampling refining plant that is connected with hotblast stove exhaust emissions end in the spirulina drying plant and executes dispensing device by topping-up pump, surge tank and the carbon dioxide of pneumatic tube connection and constitute.

Described gas sampling refining plant can adopt supergravity reactor.

Described carbon dioxide is executed dispensing device and can be made of the gas distribution tube that is connected with pneumatic tube and be arranged in the SPIRULINA CULTIVATION pond.

Beneficial effect of the present invention: the one, the useless flue gas that burning carbonaceous material produces when utilizing spirulina dry is made CO 2 gas fertilizer, substituted the sodium bicarbonate carbon source fertilizer that uses in the existing method, fundamentally solved aquaculture water carry out because of sodium ion, salts contg are too high the periodicity discharging give around the water source bring and pollute and problem such as microelement fertilizer waste; The 2nd, the useless flue gas that burning carbonaceous material produces when utilizing spirulina dry is made CO 2 gas fertilizer, inject in the cultivation pool by rational system layout, make CO 2 gas fertilizer give the source abundance, execute and annotate conveniently, make aquaculture water remain good quality, and make carbon source fertilizer content and pH value all-the-time stable in the aquaculture water be controlled at optimum regime, thereby promote the photosynthesis of spirulina effectively, increase the output of spirulina, improve the quality of spirulina; The 3rd, the CO 2 gas fertilizer of utilizing useless flue gas to make substitutes sodium bicarbonate, can save great amount of water resources simultaneously, makes the spirulina breeding total production cost reduce more than 30%; The 4th, the useless flue gas that the spirulina drying process is produced can be eliminated the pollution of flue dust to ambient air effectively all through collection and purification and utilized.It is simple and convenient, safe and reliable that the whole carbon source fertilizer of the present invention replenishes process, can regulate and control the applied amount of CO 2 gas fertilizer in the SPIRULINA CULTIVATION pond at any time as required by opening and closing the gas distribution tube valve.

Description of drawings

Fig. 1 is the topology layout synoptic diagram of carbon source supplementary device among the present invention.

Embodiment

Referring to Fig. 1, environment-friendly type spirulina breeding carbon source supplementary device of the present invention is: be used for spirulina exsiccant hotblast stove 1 tail end by gas pipe line 2 connection supergravity reactors 3, supergravity reactor 3 connects topping-up pump 5 by pneumatic tube 4, topping-up pump 5 connects surge tank 7 by pneumatic tube 6, and surge tank 7 connects carbon dioxide distribution pipe 9 by pneumatic tube 8.Each parts all can directly be purchased on market in the device, and its structure repeats no more.

Among the present invention, the breed of spirulina and carbon source compensation process can be implemented by following step:

(1) the preparation nutrient solution promptly injects proper amount of clear water in the SPIRULINA CULTIVATION pond, and disposable input sodium bicarbonate, as carbon source base fertilizer, allocates microelement fertilizers such as nitrogen, phosphorus, potassium, magnesium simultaneously into, throws in the algae kind then in nutrient solution;

(2) in the growth of spirulina platensis growth course, detect the aquaculture water situation at any time, constantly throw in the microelement fertilizer that contains elements such as nitrogen, phosphorus, potassium, magnesium, zinc in good time, inject the CO 2 gas fertilizer of making by the supergravity reactor collection and purification by the aquaculture water of gas distribution tube in cultivation pool, the carbon source fertilizer of aquaculture water and pH value are regulated and control at optimum range.

(3) sophisticated spirulina is in time circulated gather, filter, drying, simultaneously in drying process by supergravity reactor constantly with the useless flue gas collection and purification of hotblast stove tail end discharging, the preparation CO 2 gas fertilizer;

(4) implement by above-mentioned (2), (3) two step cycle.

Claims

1, a kind of environment-friendly type spirulina breeding carbon source compensation process, it is characterized in that: in spirulina breeding, drying process, adopted CO 2 gas fertilizer carbon source compensation process, the useless flue gas that used CO 2 gas fertilizer produces from burning carbonaceous material in the spirulina drying process.

2, environment-friendly type spirulina breeding carbon source compensation process as claimed in claim 1, it is characterized in that: this method comprises following step:

(4) sophisticated spirulina is in time circulated gather, filter, drying, simultaneously in drying process by the useless flue gas of the continuous collection and purification of gas sampling refining plant, preparation CO 2 gas fertilizer.

3, a kind of device of realizing the described environment-friendly type spirulina breeding of claim 1 carbon source compensation process is characterized in that: this device is by the gas sampling refining plant that is connected with hotblast stove exhaust emissions end in the spirulina drying plant and executes dispensing device by topping-up pump, surge tank and carbon dioxide that pneumatic tube connects and constitute.

4, environment-friendly type spirulina breeding carbon source supplementary device according to claim 3, it is characterized in that: described gas sampling refining plant can adopt supergravity reactor.

5, environment-friendly type spirulina breeding carbon source supplementary device according to claim 3 is characterized in that: described carbon dioxide is executed dispensing device and can be made of the gas distribution tube that is connected with pneumatic tube and be arranged in the SPIRULINA CULTIVATION pond.