Views: 23 Author: Site Editor Publish Time: 2021-07-27 Origin: Site
The "Empty Plates" campaign launched in Beijing in 2013 encouraged Chinese people to eliminate food waste. Starting with blog posts on China’s Twitter, the movement quickly swept the country and won the support of the central government. The central government subsequently issued a series of policies urging restaurants to use small dishes and abolish the minimum fee. However, the amount of food waste in China is still alarming.
As shown by the data, China generates about 17-18 million tons of food waste each year, which is enough to feed 3.05 million people from 2013 to 2015. This not only wastes natural resources including fresh water, arable land and energy, but also seriously affects the urban environment. However, through effective classification and reuse, food waste can become a valuable resource that can be used to produce biofuels, chemicals, animal feed, and compost. Nowadays, the hot-selling food waste disposer on the market is a good helper for recycling food waste.
To be honest, reusing food waste was not yet widely practice in China like many other countries in the world. When kitchens and restaurants throw away their waste, food waste is mixed with other municipal waste, compressed at processing facilities, and then transported to landfills or incinerators through transfer stations.
The Chinese government has been advocating the classification of waste in cities for nearly 20 years, although there has been little progress. In 2000, eight developed cities were designated as pilots to implement innovative policies to solve the urban waste problem. In 2007, the Ministry of Housing and Urban-Rural Development issued a national regulation to simplify the solid waste disposal chain, encouraging individuals and public institutions to separate the waste before disposing it in the trash can. Also, the city government has also implemented waste separation measures for residential areas and public buildings.
Most Chinese cities are still struggling to manage waste sorting and food waste disposal processes. The biggest obstacle is public awareness and participation in the classification and packaging of urban waste. In general, due to strong policies and investment plans for infrastructure and awareness building, as well as public supervision by communities and NGOs, cities on the east coast have better classification systems and higher levels than their inland counterparts. Waste recycling rate. However, in less-developed cities, it is difficult to induce behavior changes and promote public participation in waste sorting. In 2014, a survey on the understanding of urban waste was conducted in six cities. Surprisingly, more than half of the interviewees did not realize the importance of waste separation in some small cities.
In addition, there are other problems. Even some households and restaurants voluntarily separate food waste from recyclable and non-recyclable waste, and it is still inevitable to mix it with other places during the process. Maybe a good quality home garbage disposal and commercial waste disposal will make a big difference. Municipal waste sorting mainly depends on scavengers and health station workers. Another important factor is that the market value of food waste is much lower than that of recyclable items such as paper and plastic, so few departments are willing to completely classify food waste without any financial incentives.
In March 2017, the National Development and Reform Commission and the Ministry of Housing and Urban-Rural Development selected 46 cities for mandatory waste classification, with the goal of achieving a minimum recycling rate of 35% by 2020. According to its classification criteria, "wet" waste (food waste) must be separated from "dry" waste (other types of waste) to reach the recycling threshold. All public institutions, supermarkets, hotels, restaurants and office buildings must abide by the rules or be punished. In response to this plan, Chinese municipal authorities are increasing investment in public education and strengthening the partnership between the public and private sectors to build waste infrastructure. The fact is that mandatory waste classification rules do make a difference. It forced the municipal governments of 46 pilot cities to issue innovative policies and initiatives to solve their urban waste problem. Now, more and more people have improved their classification awareness and habits, introduced clean technologies, and used food residues in a sustainable or productive way.
A small portable device commonly used to deal with food waste in daily life is a food waste processor. The technical principles and advantages are briefly introduced below.
The food waste disposer drives the cutter head through a small DC or AC motor, and uses centrifugal force to crush the food waste in the crushing chamber and discharge it into the sewer. The crushing chamber has a filtering function and automatically intercepts food solid particles; the cutter head is equipped with two or four 360-degree rotating impact heads, no sharp edges, safe, durable, and maintenance-free. The speed of the cutter head (full load, working condition) is about 1450-1750 rpm for the AC motor. The diameter of the crushed particles is less than 4 mm, which will not block the drain pipe and sewer.
The advantages of using a kitchen waste grinder are as follows:
1. For residents: ①Reduce the odor in the kitchen, especially the cabinets that store trash cans; ②Reduce the possibility of breeding cockroaches and bacteria; ③Make cleaning up household garbage easy; ④Conducive to maintaining stairs and the sanitary environment of residential quarters.
2. For the environmental sanitation department and property management: ①Improve the environmental sanitation operation environment; ②Effectively reduce the output of garbage; ③Reduce the secondary pollution in the garbage collection and transportation process; ④Reduce the difficulty and cost of garbage collection and transportation.
3. For the municipal and traffic management departments: ①Increase the content of perishable organic matter in the sewage, which is beneficial to the biochemical process of the sewage treatment plant; ②Reduce the number of garbage trucks and the pollution of the road surface caused by the leakage of garbage and sewage.
4. For the environment and resource recovery: ①Reduce the pollution of food waste to recyclables and increase the resource recovery rate; ②Improve the treatment conditions of landfills and incineration plants, and reduce the pollution of leachate, biogas, flue gas, etc.
In order to solve the problem of how to deal with food waste, Value engineers devoted two years to the development of embedded intelligent garbage processor, which became the first product to be
used in the world. Get more information of household food waste crusher and smart kitchen waste disposer, please visit our official website.
