Family source classification is an important part of garbage classification. There are generally two kinds of domestic garbage produced in the family: kitchen waste and other garbage, so it is basically possible to classify the garbage by preparing two kinds of trash cans in the family.
Due to the limited output of hazardous waste, residents do not need to set up separate barrels in their homes, and residents can directly put them into hazardous waste collection containers in residential areas.
Because recyclables are relatively clean, residents can choose to temporarily store them in a suitable place at home.
Classified delivery
After the source classification, residents are required to put domestic garbage into the designated drop point of the community. Harbin determines the garbage classification method according to local conditions, and residents in the street organization area adopt the method of "fixed-point and regular delivery, supplemented by floor classification delivery" to classify and deliver garbage.
If residents need to sell recyclable materials by themselves, they can make an appointment with the contracted recycling company by telephone and collect them by touring. For the "thrown out" recyclable materials, residents need to put them into the designated recyclable barrels in the community according to different categories.
Put kitchen waste: After the kitchen waste is broken, put it into the kitchen waste bin, and put the plastic bag containing kitchen waste into other bins.
Harmful waste and other garbage can be packed and put into the designated trash can.
Classified collection and transportation
Harbin strictly implements the requirements of "one type of garbage and one type of vehicle", continuously increases the number of classified transport vehicles and improves the classified transport capacity.
For recyclable materials, all districts have completed the signing and docking work with recycling enterprises. The contracted company arranged for professional vehicles to adopt a combination of fixed-point collection and itinerant collection, realizing the city-wide coverage of the recyclable garbage collection and transportation system.
For hazardous waste, according to the characteristics of small output, 94 temporary storage points were set up in each district, and 34 vehicles were arranged for transshipment. Hazardous wastes in residential areas and public enterprises are regularly transported to temporary storage sites, and hazardous waste disposal enterprises arrange qualified vehicles to regularly remove hazardous wastes from temporary storage sites in various districts, and the hazardous waste collection and transportation system is fully enclosed.
In terms of kitchen waste, Harbin has purchased 102 special vehicles for kitchen waste at present, and each district has purchased or modified 64 garbage compression vehicles according to the actual situation. The city's food waste sorting and transportation system has been completely closed, covering the whole city.
For other garbage, the original closed transport vehicles are used for transportation.
Classification processing
Other garbage, the most common way to treat other garbage classified by citizens at present is incineration for power generation.
Kitchen waste is roughly divided into kitchen waste mainly generated by leftovers in residents' homes and kitchen waste generated by hotels, restaurants, canteens and other catering institutions. The former will eventually become fertilizer and biogas; The latter uses esterification process to produce biodiesel.
Recyclable garbage, qualified environmental recycling enterprises in Harbin will set up special containers or temporary storage space according to the types and output of recyclable materials to realize separate classification and fixed-point delivery. After classification, they are packaged and stored, and then these recyclables are classified and processed, so that all kinds of recyclables can enter the industrial chain of resource recycling and turn waste into treasure.