I will never throw rubbish on the ground again in the future 3 explanatory text of 300 words

Dante said: "There is no garbage in the world, only misplaced treasures."

In order to "actively participate in garbage classification and create a beautiful urban environment" The idea has been deeply rooted in the hearts of the people, allowing this citizen action to be more deeply practiced. On March 18, Huzhou No. 11 Middle School and Bilanghu Community held an environmental protection lecture on "Garbage Classification, Be Civilized". The lecture was given by Ye Sijia, class 12, junior high school Hosted by classmates, community secretary Zhang Minmin, director Chen Min, school vice principal Tang Kunming and other leaders attended.

The lecture was delivered by Mr. Chen Yourong, an elderly volunteer from the community. Mr. Chen started from "Why should we implement garbage classification", "Garbage classification" Model”, “Pilots, plans and methods of waste classification in our city”, and “Little hands holding big hands, striving to be a propagandist for waste classification” were elaborated and explained in depth, and an essay solicitation event was announced jointly with the school’s Bilang Campus . Teacher Chen’s clear and sweet voice and vivid language deeply affected the teachers and students of the school.

Then, Teacher Cai Yan, secretary of the school league committee, made a summary and called on all teachers and students to take the initiative to establish "persistence". With the idea of ????"garbage sorting and enjoying a low-carbon life", actively participate in the action of "garbage sorting and be civilized", form habits, shape a good character, and strive to be a civilized citizen.

One point for garbage , the environment is very beautiful. This activity is a detail of the school's month-long "Civilized Etiquette Education Month" activity. Now the school is carrying out a variety of civilized etiquette activities and education in an orderly manner around the activity implementation plan.

Ninth power food waste disposal

1. Current problems existing in food waste disposal in various domestic communities

1. Leftover food and melon rinds from each meal . Put the fruit scraps in a plastic bag and place them in a corner indoors. Take them outdoors when convenient. If you do not take them out in time or forget to take them outdoors, the decayed gas will remain indoors and cause pollution.

2. After washing vegetables and dishes, take out the leftover vegetables and residue from the pool by hand and put them into garbage bags. Some of them will inevitably leak into the sewer and cause blockage, which is quite troublesome to clean. At the same time, if the garbage bag leaks, the sewage will It will also contaminate indoor floors and other objects.

3. Garbage brought out outdoors is piled in the corners of corridors (this is the case for most high-rise residents), trash cans, and garbage stations, emitting various odors, especially in hot summers. In this way, the property management company must arrange a large number of cleaners to transport it out of the community in time. During the entire treatment process, pollution is everywhere.

4. The garbage transfer station in the community is a source of odorous gases, Where mosquitoes and flies breed, where to build garbage stations, and how to reduce pollution from garbage stations are troublesome issues for both builders and property management companies.

And foreign residential areas have introduced a new kind of Kitchen equipment - food waste disposer, has effectively solved this problem that worries many people.

2. Current status of domestic waste pollution in China

(1) Garbage in the open Stacking a large amount of ammonia, sulfide and other harmful gases releases, seriously polluting the atmosphere and the urban living environment.

(2) Seriously polluting water bodies. The garbage not only contains pathogenic microorganisms, but also produces a large amount of Acidic and alkaline organic pollutants will dissolve heavy metals in garbage, forming a three-in-one pollution source of organic matter, heavy metals and pathogenic microorganisms. The leachate produced by rainwater will inevitably cause serious pollution of surface water and groundwater. .

(3) Biological pollution. There are many pathogenic microorganisms in garbage. At the same time, garbage is often a breeding ground for mosquitoes, flies, cockroaches and rats, which will inevitably endanger the health of the general public.

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(4) A large amount of land is occupied. According to preliminary surveys, 2/3 of the 668 cities in the country were surrounded by garbage belts in 2003, and the total land area for garbage storage nationwide is 800,000 acres.

(5) Garbage explosion accidents continue to occur. With the increase in organic content in cities and the shift from open-air scattered storage to centralized storage, simple covering can easily create an anaerobic environment that generates methane gas, which is flammable and explosive.

(6) More than 60% of urban domestic waste is mainly produced by secondary pollution of organic waste from community residents. In other words, the continuous increase of organic waste in communities is the source of the continuous increase of urban domestic waste. < /p>

With the development of the economy and the improvement of people’s living standards, the garbage problem has become increasingly serious.

2/3 of my country's 668 cities are surrounded by garbage belts. The garbage cannot be buried or burned, causing a series of serious hazards.

According to a survey by Wang Weiping, an expert on garbage issues, garbage The resource potential is growing with the development of living standards and economy. Among the garbage components, metal, paper, plastic, and glass are regarded as resources that can be directly recycled, accounting for 42.9% of the total garbage and can be directly recycled. The recycling rate should be no less than 33%. However, this requires the country to spend huge sums of money to clean up. Taking Shanghai as an example, the city’s landfill plants have expanded from the original three to the current five, but this is still It is difficult to meet the growing demand for waste treatment in Shanghai.

3. Technical principles, advantages and disadvantages of kitchen waste (crushing) processors

Kitchen waste (crushing) processors are A small DC or AC motor drives the cutterhead, which uses centrifugal force to crush the food waste in the crushing chamber and discharge it into the sewer. The crushing chamber has a filtering effect and automatically intercepts food solid particles; the cutterhead is equipped with two or four 360-degree rotating The impact head has no sharp edges and is safe, durable and maintenance-free. The cutter head speed (full load, working state) is about 2600-5500 rpm for DC motor and about 1450-1750 rpm for AC motor. The diameter of the crushed particles is less than 4 mm, will not block drainage pipes and sewers.

The advantages of using a kitchen garbage (crushing) processor are as follows:

1. For residents: ① Reduce the storage of garbage in the kitchen, especially

2. For the sanitation department and property management: ① Improve the sanitation working environment; ② Effectively reduce garbage production; ③ Reduce secondary pollution during garbage collection and transportation; ④ Reduce the difficulty and cost of garbage collection, transportation and processing (this is particularly important ).

3. For municipal and traffic control departments: ① increasing the content of perishable organic matter in sewage is beneficial to the biochemical process of sewage treatment plants; ② reducing the number of garbage trucks and the impact of garbage and sewage dripping on Pollution on the road.