The development direction of environmental protection

In urban planning, construction of environmental protection has become a trend of development, is to reduce pollution, protect the natural environment and realize sustainable development. The current environmental protection sort is more, they have the following characteristics: low investment, covers an area of small, low running cost, water or without water, make the waste back to nature, the sustainable utilization, thus reducing the environmental pressure, maximum efficiency of environmental protection. Common have the following kinds:

Type a, circulating water, this kind of toilet some call "flush the toilet." It is using biochemical treatment technology, collected will be used flushing water again after multiple purification to achieve "gray water" standard, to flush the toilet, so recycling use. It mainly adopts international advanced biological treatment technology, after purification, the water can be recycled, water-saving rate as high as 85%. In addition, after purification of water, no smell, can be used to breed fish, water the flowers, vehicle and road spraying. Septic tanks need to clean up once a year. The Summer Palace, Ming tombs have been built and put into use.

Second, avoid water type, this type of toilet is used mechanical and electrical integration of machinery, using biodegradable plastic bags will be treated as waste packaging seal and focus to collect. Don't need to water pipe, low operating cost, saving water, manure utilization at the same time, realize the virtuous circle of ecological, reduced the sewage processing link, comply with the principles of sustainable development. Badaling Great Wall, such as the jiuzhaigou scenic spots and some traffic trunk lines are a lot of use.

Three type, microorganism, this kind of senior public toilets, known as "dry", is the use of effective microorganisms will waste within short time (4 to 8 hours) fully biodegradable into water and gas mixture, and use it to flush waste. It need not external water, save water, at present, the Summer Palace, the botanical garden, joyous pavilion park has its model project. Foam water-saving toilet, the toilet is very little water foam into thousands of times of foam covered in the commode, changes the traditional water sealing for the bubble sealing, the urine in the bubble function falls into a cesspool. The ecological treatment, kill virus and worm eggs, harmless form efficient organic fertilizer. Beijing, kunming, suzhou and other cities to build 14 such toilets.

Four, dry odourless composting toilets, this kind of toilet is similar to avoid water sanitation toilets and microbial toilet, need not water, using microbial corrosion dung decomposition into compost product. This kind of toilet, low maintenance cost, to save water, polluting the environment, also can get good compost. The toilet in the United States, Cuba, South America and other countries is widely used, and also on China's hunan changsha.

Five, the intelligent toilet environmental protection, intelligent system, introduced is inside in the toilet, toilet automatic management, make it has the characteristic such as intelligence, ecology, environmental protection of a toilet. This toilet cost and operation cost are high, large-scale popularization and application has the certain difficulty. Smart, working in the field of ecological toilet is suitable for the district and transportation, large gatherings, military field and so on all is unable to provide water supply and drainage facilities, hope of water-saving in public places.

Environmentally friendly toilet must be through the application of modern technology, can help to change or reduce the emission of traditional public toilets on the surrounding environment pollution; Can help to change or reduce traditional public toilets for cleaning, eliminate emissions and must pay for natural ecological material consumption; Can to recycle the emission of ecology; Can make a design humanization, in appearance design pays attention to harmony with the surrounding landscape, as the organic part of landscape; Able to toilet toilet.

We must get the environmental consciousness into the whole process of design, evaluation and analysis of the ecological environment facilities and organization and site planning, structure selection, auxiliary facilities design, space form and style, etc.