Portable, Smart and Sustainable Zero-Emission Lavatory for Public Uses

C.C. Zhou, J.X. Wang, W.W. Liu, D.K. Li, G.N. Ou, C.R. Zhao, M.L. Zhou
United States

Keywords: Biodegrade, Portable, zero-emission, toilet, IOT,


There are 2.5 billion people in the world do not have a reasonable toilet or sanitation facilities. 1.1billion people relieve themselves on the ground. 88% of the children mortality in the world is related to the bad sanitary conditions of toilet or lack of toilet, which causes diarrhea and gastrointestinal infection. According to the Environmental Protection Agency, the average family of four in United States consumes approximately 400 gallons (1514 liters) of water a day. That means each person uses 100 gallons (378 litters) per day. That's a lot of water that quickly runs down the drain! In China, each person uses about 60 gallons (227 liters) per day based on the online data via web crawling and analysis. In both countries, however, each person uses about 16 gallons (61 liters) per day for toilet flushing. That means that each of us flushed 5840 gallons (22 metric tons) of water down to the toilet. There are many innovations in the world about a smart and sustainable zero-emission toilet, particularly for using in a public place, such as, on a busy street, in parks, for various events like concerts, demonstrations, rodeo, expos, holiday celebrations, etc. Yunnan Province, China, is one of the most beautiful places in the world. There are 47.4 million residents living there year in and year out. In addition, there are 28 million travelers just having vacations there all year around. Toilets in the public sites are serious problem. Here we report our research and development results on a smart and sustainable zero-emission toilet for public uses in Yunnan Province, which started deployment on February 27, 2017. That allows every traveler to use a good lavatory in a park just as the powder room in a 5-star hotel without any payment. Advantages of the “portable, smart and sustainable zero-emission lavatory via internet of things. • Biodegradating units and Physico-chemical units self-clean the toilets after flush, reuse and recycle the reclaimed waste water from toilet flushing in a self-sustainable system. • Using it anywhere to fight a water shortage problem, • No need to build a water supply pipe lines or sewage lines. • Anyone can enjoy a beautiful lavatory, which is like a powder room of a 5-star hotel, in any place and any time. • It fits to any place without plumbing or plumbing is too expensive, such a warehouse, mining, oil field, construction sites, subway station, bus station, etc. • It is managed and distributed by APPs via Internet of Things. • Portable, light weight, easy relocating to place which needs a good restroom. • Easy Maintenance, saving energy, environmental friendly.