(1) Take the raw material organic mixture, molasses, fungicide, H2O, and defoaming agent and mix them. The raw materials are mixed according to the mass ratio, wherein organic matter: 20%-80%, molasses: 5%-10 %, fungicide: three thousandths, h2o: 10%-50%, defoaming agent: one thousandth;
(2) Add the mixture in step (1) to the stirring kettle and stir evenly ;
(3) Use the evenly stirred mixture in step (2) as a sewage treatment carbon source; centrifuge the mixture, take the solids and wash them with distilled water 2-3 times, and put the solids into the oven The product can be obtained by keeping it at 120℃ for 3-5h.
Further, the organic mixture in step (1) includes one or more of methanol, ethanol, acetic acid, vinyl acetate, ethyl acetate, and sodium acetate.
Furthermore, in step (1), the fungicide accounts for 3/1000 of the total mass.
Furthermore, in step (1), the defoaming agent accounts for 1/1000 of the total mass.
Further, the stirring temperature range in step (2): between 0-50°C, the stirring time range: 20-45 minutes, the stirring speed range: 65-80 rpm, the stirring time is 25- 30 minutes.
The working principle and beneficial effects of this technical solution are:
(1) This solution does not require high-pressure and high-temperature heating to produce composite carbon sources, which reduces safety hazards during operation and has high production efficiency. , product quality is stable.
In this plan, different raw materials are transported to the mixing tank in different proportions for mixing, and the finished product is transported to the storage tank. The entire process does not require personnel transportation, is high in safety and efficiency, and one person can complete all operations; Compared with the existing technology, the product quality of this solution is controllable, safe and efficient.
(2) During the experiment of this plan, it was found that some organic substances are not miscible with H2O (such as vinyl acetate, ethyl acetate, etc.). The inventor found through many experiments that the general control should be 8%. There will be better miscibility within the range.
(3) The organic mixture used in this plan has a large amount of organic matter recycled on the market, and it is basically incinerated, causing major pollution to the environment; the production of composite carbon sources in this plan is more expensive than traditional Glucose and acetic acid treatment reduce the cost of adding carbon to sewage. In experimental comparisons, composite carbon sources are more easily absorbed by sewage, and the overall effect is better than glucose and acetic acid.
Specific implementation methods
The following is further detailed through specific implementation methods:
The embodiment is basically as follows. A composite carbon source production method includes the following Steps
(1) Take the raw material organic mixture, molasses, fungicide, H2O, and defoaming agent and mix them. The raw materials are mixed according to the mass ratio, wherein organic matter: 20%-80%, molasses: 5%- 10%, bactericide: 1/1000-3/1000, h2o: 10%-50%, defoaming agent: 1/1000-3/1000; in this embodiment, the organic matter owner preferably uses industrial recycled waste liquid; currently The main wastewater treatment in the market is glucose and industrial acetic acid. The ex-factory price is around 3,000 yuan/ton. The production cost of composite carbon sources is within 1,200 yuan/ton. (Freight to the factory including tax for organic matter is 650 yuan/ton, and freight for additives including tax is 650 yuan/ton. 300 yuan/ton for a factory, 250 yuan/ton for a hydropower factory). The composite carbon source is prepared according to the nutrients needed by microorganisms in the sewage. Compared with glucose and industrial acetic acid, it is easier to be absorbed and utilized by microorganisms.
(2) Add the mixture in step (1) to the stirring kettle and stir evenly; in this example, the stirring temperature range: between 0-5025°C, the stirring time range: 20-45 minutes, stir Speed ??range: 65-80 rpm, optimal temperature: 25°C, optimal stirring time: 25-30 minutes, optimal speed: 75 rpm.
(3) Use the evenly stirred mixture in step (2) as a carbon source for sewage treatment; centrifuge the mixture, take out the solid and wash it with distilled water 2-3 times, and put the solid into the oven Keep the product at 120℃ for 3-5h.
In this embodiment, the organic mixture includes one or more of methanol, ethanol, acetic acid, vinyl acetate, ethyl acetate, and sodium acetate. The amount of bactericide is preferably 3/1000 of the total mass; the amount of defoaming agent is preferably 1/1000 of the total mass.
The organic mixture selected in this embodiment has a large amount of recycled organic matter in the market, and is basically incinerated, causing significant pollution to the environment. Compared with traditional glucose and acetic acid, the carbonization cost of wastewater treatment with composite carbon sources is about 60% lower. In experimental comparisons, composite carbon sources are more easily absorbed by sewage, and the overall effect is better than glucose and acetic acid.
The above are only embodiments of the present invention, and common knowledge such as the known specific structures and characteristics of the solutions are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention and will not affect the implementation of the present invention. effectiveness and patented practicality.