Hangzhou Tianziling Landfill and Wu Qinglong Valley are a huge landfill area. More than a dozen garbage trucks dump garbage in turn. Bulldozers and rollers shuttle on the "garbage mountain" from time to time. Sweaty sanitation workers are braving the stench, helping the sweeping trucks sweep the scattered solid garbage and kitchen garbage under the dumping platform. It is understood that the elevation of Tianziling landfill was 30m when 199 1 was put into use. At present, the elevation of the landfill has exceeded100m, and165m is the upper limit.
Statistics show that, like Hangzhou, more than one third of cities in China are facing the garbage dilemma. In more than 600 cities except the county seat, two thirds are surrounded by garbage. The national urban garbage dump has occupied more than 500 million square meters of land, and the annual economic loss is as high as 30 billion yuan. In some cities and counties of Hainan Province, except towns and villages, most natural villages are in a state of laissez-faire. Waste plastic bags and plastic woven bags account for the largest proportion of rural garbage. Even in Shuiman Town in the hinterland of Wuzhishan, you can see plastic bags covered with branches in the wind. According to the survey data, there are more than 6.5438+0.5 million plastic bags used every day in Hainan Province, of which more than 90% are non-degradable plastic products.
In Chinese mainland, more than 90% of the available garbage is buried or burned. For example, there are more than 654.38+500 million tons of construction waste every year, and only a few thousand tons are recycled, and the premise of maximizing utilization is garbage classification. However, since 2000, Hangzhou has been a pilot city for garbage sorting, and then it has disappeared. On March 25th, 20 10, the trial of garbage classification was started again, and the garbage was divided into harmful waste, recyclable garbage, kitchen garbage and other garbage, corresponding to red, blue, green and yellow trash cans respectively, and degradable kitchen garbage bags were provided free of charge. Garbage classification has covered 98% of the living quarters in Hangzhou, and 930,000 tons of garbage enter the recycling channel every year. However, the implementation situation is not optimistic, but trash cans of various colors occupy the limelight.
Even if residents transport by classification, there is no place for recycling. Most garbage has two destinations. What can be burned is sent to the power plant for incineration, and what cannot be burned is sent to the landfill, that is, the residents and traffic links in the early stage did nothing. Lack of funds is also one of the reasons for the delay in the implementation of garbage sorting. Some insiders have calculated an account. Take Guangzhou as an example. If it lasts for 3 to 4 years, the garbage bag alone will cost 654.38+04 billion yuan. If 200 people are equipped with 654.38+0 instructors, Guangzhou will spend 4 billion every year. Such investment, even for developed cities, is almost unimaginable.
The sanitation department and some related experts suggested that to truly make garbage sorting a long-term mechanism, we should not only "attach importance to it by the government, financial input, scientific and technological support, cultural guidance and public participation", but also take a multi-pronged approach from the aspects of law, administration, economy, technology, culture and education to realize the green development, circular development and sustainable development of the whole society.