Food waste treatment technology developed in Taiwan
Household or restaurant leftovers, food processing waste, leftovers or industrially produced organics are all called organic waste. Common food waste disposal methods include feeding pigs, making fertilizer or throwing garbage trucks, etc. Industrial waste requires special treatment by environmental protection operators. Due to the outbreak of African swine fever, the virus can exist in the environment for more than 100 days in refrigerated pork and 1,000 days in frozen pork. To avoid food chain infection caused by food waste, the government has banned food waste from feeding pigs.
Kitchen waste pig breeding is the spirit of Taiwan's many years of culture, which is mainly the waste of traditional agricultural society. The modern method is to reduce the cost of feeding. Letting black-haired pigs eat food waste not only solves the problem of food waste, but pigs can also grow up. In fact, it is not healthy for pigs to eat food waste. Pig farmers cannot control the sources or ingredients of food waste, which can easily cause pigs to become sick. Pigs becoming sick or dying will cause huge economic losses to pig farmers. At present, the government has banned food waste from feeding pigs to prevent swine fever in Africa. As a result, most small-scale pig farms have left the farm or switched to feeding pigs. As a result, operators who originally collected food waste and sold it to pig farmers have now received food waste but cannot sell it Situation, food waste has nowhere to cause great distress to the industry!
Making fertilizer from kitchen waste is a good way to recycle and reduce organic materials. However, in the traditional composting process, the fermentation time exceeds one to two months, and the compost will emit foul effluent and other problems, often causing environmental pollution and other problems. Nearby residents protested and rejected. In recent years, biological treatment methods such as blackwater maggots, earthworms, or cockroaches have been developed, but the problems of biological escape or the spread of pathogenic bacteria still need to be overcome. With the advancement of technology, it has been developed that adding enzyme to organic waste to accelerate the conversion into fertilizer is the most efficient and hygienic method at present. For today's highly urbanized and densely populated cities, a large amount of organic waste such as kitchen waste is generated daily. How to quickly and efficiently demineralize is the key!
How to deal with food waste in four main points:
Do not hoard: As long as it is piled up, it will spoil and produce organisms such as odor or breeding flies.
Avoid clearing: Immediate on-site processing will reduce significant shipping costs.
Desalination and elimination: Reduce the volume of waste to reduce the cost of subsequent treatment.
Circular economy: The remaining small amount of residue becomes concentrated organic fertilizer.
Genevolution INC. follows these four main points to design a food waste elimination system. The advantage is that the enzyme processing speed is extremely fast, and the decomposition can be completed in two hours! The machine has a variety of capacities and a small footprint, which can be continuously placed or processed in batches without generating odor. Stores, restaurants, factories, ships, schools, etc. are applicable. With the kitchen waste quick-extinguishing system, the organic waste disposal is no trouble at all!
No one wants food waste to stay in your hand for more than 1 second
Food waste is waste generated from the production end to the consumer end, which will odor, worm and pollute the environment. Food waste is divided into two categories: 1) cooked food waste; 2) raw food waste. Cooked food waste is the easiest to feed pigs. As long as it is cooked at high temperature, it can kill pathogenic bacteria in food waste. Taiwan ’s law requires that food waste must be "cooked at high temperature and continuously stirred to maintain the center temperature above 90 ° C. , Cook for at least an hour. " Such conditions make it difficult for pig farmers to implement and the source of cooked food waste is unstable. It is too salty, too oily, and may be mixed with toxic substances. Therefore, pigs die after eating. risks of. Raw food waste is sent as raw material for compost, and fermented fertilizer can also fertilize crops. The fermentation process takes a long time and can produce foul odors, so the compost yard must be covered in a sparsely populated place.
Why is it difficult to handle food waste?
Recycled food waste most often sees plastic bags or some other garbage mixed in it, so the garbage must be manually separated before subsequent processing. Raw and cooked food waste is best handled separately. Raw food waste is not just vegetable leaf peels, etc. Sometimes there are things that cannot be eaten by pigs such as kernels, dregs or crude fiber, so raw food waste is more suitable for Compost; cooked food waste is more prone to problems such as oil, salty or rotten pathogenic bacteria. Therefore, there is a risk of disease in feeding pigs. It is also safer to cook at high temperature before feeding. Regardless of raw or cooked food waste, if the existing treatment scheme is saturated, it can only be sent to the incinerator for treatment!
The problem of food waste usually does not make people feel that it is a problem. Is it because of African swine fever epidemic prevention?
Since the Taiwan government entrusts the cleaning team to recycle food waste at home, the general public will not feel that there is any problem with food waste, they will only find it a bit cumbersome to prepare food waste collection buckets at home. However, everyone does not know that some of the food waste collected by the cleaning team is sold to pig farmers to feed pigs or compost, and most of them are sent to incinerators for combustion treatment. However, people who always have food waste disposal needs, such as large restaurant operators, food processing plants, slaughterhouses, etc., produce a large amount of food waste (called organic waste ) every day . According to the Taiwan government regulations, environmental protection must be entrusted Clearance processing. Before the African swine fever epidemic prevention, environmentalists could also sell it to pig farmers and compost yards after they were cleared. However, excess food waste was a persistent problem and could only be sent to the incinerator for treatment. The food waste that can feed pigs does not know what to do! In terms of the proportion of food waste disposal, about 12% of raw food waste is used for composting, and 26% of cooked food waste is fed to pigs, while excess food waste that cannot be processed is burned by incinerators. 62%. So even if there is no strategy to prevent swine fever in Africa, food waste has long been overwhelming and unmanageable.
There are many ways to deal with food waste, but there are still many disadvantages.
If food waste in Taiwan cannot feed pigs, environmentalists will choose to send it to the incinerator, which is fast and easy. However, after careful analysis, there are actually places for disposal of food waste, such as landfills, fertilizer fields, chemical plants and biomass plants. However, these methods have some disadvantages, such as:
1) Incinerator: High moisture food waste causes the core temperature to drop and the dioxin is produced in the incinerator, while high salinity reduces the equipment life quickly.
2) Landfill: no longer bury landfills due to concerns about environmental pollution and saturation.
3) Fertilizer field: produces malodor and slow fermentation speed.
4) Chemical factory: It mainly processes animal carcasses or waste carcasses , internal organs, skins, bones, or hoofs, etc. to process them to decompose them into reusable resources such as oil and protein . During the process, malodor and high processing costs are generated.
5) Biomass energy plant: only raw food waste is processed, and the biogas production time is up to one month.
At present, in response to the upsurge of the circular economy, garbage must also have economic value, so countries around the world have begun to promote the construction of biomass energy plants. On average, one metric ton of raw food waste can generate about 100 degrees of electricity. Anaerobic fermentation does not produce odor and the residue can be used as fertilizer and upgraded land. In fact, the seemingly perfect biomass plant has hidden concerns. For example, Taichung Waipu Biomass Energy Plant, due to insufficient recycling of raw kitchen waste, leads to low power generation efficiency. Therefore, it is necessary to evaluate the production of raw kitchen waste and improve the recycling mechanism to achieve the purpose of circular economy.
In recent years, biological treatment methods have prevailed. What are the problems?
The source of food waste is unstable, and it is likely to be contaminated with toxic substances or pathogenic bacteria. These food waste eating organisms are likely to be contaminated by dioxin and heavy metals. If these mass-proliferated organisms are used as feed or escaped by After other creatures hunt, they will be affected by the biological chain. In fact, humans are still the ultimate victims. In order to prevent insect-borne diseases, the EU's "Feed Ban" restricts insect proteins for human consumption or animal feed. Therefore, insects that eat food waste need to be further evaluated for risk. Xie Yaoqing, director of the Animal Husbandry Division of the Agricultural Committee, said that the germs or heavy metals in the feces of poultry and animal animals cannot determine whether the black larvae can be metabolized. Risk of infection.
Gram kitchen enzymes to solve food waste problems
"Ke Kitchen" Enzyme is a comprehensive food waste treatment solution. With a food waste crusher, it becomes a unique "food waste quick-off system". The use of enzymes to decompose organic matter eliminates the need to distinguish between raw and cooked food waste. Only four simple steps are needed to complete the purpose of food waste decontamination. No extra odor is generated in the process, and the taste of food waste itself can be gradually eliminated.
All kinds of food ingredients or biological waste can be processed. Generally, the rate of decomposition of cooked food is faster than that of raw food waste. If you need to speed up the decomposition of raw food waste, you can increase the pre-crushing process. Food waste can be decomposed into the machine from time to time, and there is no need to consider whether the previous batch of processing has been completed. To solve the problem of food waste accumulation is to solve the problem of odor. The residue after the final treatment does not attract flies, and it is very hygienic even if placed indoors.