At 9 o'clock in the morning, Wang Yingzhen of Hujiadai Village came to pour the freshly selected vegetable leaves. She took out the IC credit card and swiped it in the induction area, the panel of the disposer opened, put the vegetable leaves together with the bag, and the panel closed, as if the garbage was "eaten". Unlike the previous wet waste biochemical machine, this machine "eats grapes without spitting grape skins", and after probiotic degradation, it can swallow all organic components.
Pictured: Volunteers instruct villagers to drop wet garbage. Photo by Jiang Huihui (same below)
Corn starch garbage bags Are more convenient without breaking the bag
This wet garbage disposal machine, called "Big Stomach Frog", settled in Hujiadai Village more than a month ago, and is also the first wet garbage disposal machine in Niigata Town without any sewage discharge. The design capacity of the machine is 200 kg, and the average daily consumption is 300 kg of wet waste, which is almost in line with the amount of wet waste disposed of by the whole village. More than a month ago, the villagers received a unified distribution of point cards, which can accumulate 1 point for every 150 grams of wet garbage, and the corresponding exchange gifts include facial tissues, dishcloths, toothbrushes and other daily necessities.
At the same time as the distribution of the score card, the village issued a degradable garbage bag made of corn starch, and the villagers did not need to break the bag when they put wet garbage, and they could directly put the garbage bags together. Corn starch garbage bags can also be exchanged from the machine, the village calculated an account, if all the wet garbage in the house is taken to put in, three weeks of points can be exchanged for a month's garbage bags, the remaining week's points can be exchanged for other items. According to the background, among the most popular redemption items among the villagers, there is a playing card designed by the "Big Stomach Frog". The deck of the playing cards is printed with knowledge of garbage sorting, and the content is composed of cartoons and simple text, which is more easy to understand, and the villagers can consolidate the knowledge of classification while entertaining.
Pictured: Hujiadai garbage classification demonstration site.
The disposer adds probiotics to mimic the human digestive system
According to project leader Jin Chunlei, the principle of disposing of wet garbage simulates the human digestive system, and probiotics that can degrade organic matter are added inside the machine. Through the program, the temperature, humidity and dissolved oxygen in the degradation chamber are automatically controlled, so that the wet garbage is rapidly degraded, and finally 96% of the wet garbage can be converted into heat, carbon dioxide, water and a small amount of gas, and finally leave about 10% of the organic fertilizer. It is based on the principle of biodegradation, if inorganic matter is mixed in the wet garbage, it will not be too harmful to the machine itself, and it only needs to be manually and regularly removed from the disposal warehouse.
The disposal machine is out of the warehouse once every half a month to a month, and can collect about 50kg at a time. "Under the premise of controlling the source of wet waste, it can be ensured that the organic fertilizer out of the warehouse meets the green forest standard." Jin Chunlei is docking downstream industries on a small scale and has reached a preliminary cooperation intention with a horticultural company. As far as possible, the garbage is turned into treasure, which is Jin Chunlei's goal. This C-shaped cottage is made of construction waste crushed into powder, beaten, and then built by 3D printing. Beautiful and practical, it also conveys the concept of garbage recycling.
There are also economic returns to reducing pollution The "big stomach frog" is expected to continue to be promoted
At present, there are 11 administrative villages in Niigata Town, and the wet garbage is collected and transported by the cleaners and uniformly put into the pond, while the remaining 9 communities adopt the "classified house" transportation mode. According to the town community service center, the "big stomach frog" wet garbage disposal machine in Hujiadai Village has a certain degree of replicability. "The villagers of Hujiadai are relatively simple, and everyone's willingness to cooperate is relatively high, plus the villagers live in a concentrated place, so they chose this place to set up a point at that time." Now that this model is relatively mature, we are considering extending it to villages with similar situations in the surrounding areas. ”
The social benefits are obvious, so what about the economic benefits? Through more than a month of data analysis, the "big stomach frog" controlled by the intelligent program consumes about 10 degrees of electricity per day, and the economic cost is not high. Jin Chunlei envisions that if it can be promoted in the net vegetable production area, there can also be higher economic income output. "Some time ago, Babi Mantou came to investigate, they have 2 tons of vegetable leaves produced every day, and now they are asking the sanitation company to pull away, and they need to pay the disposal fee." If this equipment is used for disposal, it can not only reduce secondary pollution, but also produce economic returns on organic fertilizer. ”
Correspondent Zhang Xiaoxiao Xinmin Evening News reporter Yang Jie