How to Handle Mobile Toilet Drainage
There are various drainage methods for mobile toilets, and corresponding treatment methods should be adopted according to specific types. Here are the common drainage methods and operational points for mobile toilets:
Conventional water-flush type: It requires connection to water supply and drainage pipes, and uses manual or automatic induction devices for sewage discharge. The sewage is directly discharged into a septic tank or municipal sewer through pipes, suitable for places with stable water sources and drainage conditions. During use, ensure the pipes are unobstructed and regularly check the capacity of the septic tank to prevent sewage overflow. It has relatively low construction costs and is relatively simple to maintain, making it the most widely used drainage method.
Vacuum sewage system: It utilizes the principle of negative pressure to quickly suck sewage and waste into a collection container through a vacuum pump. When the sewage reaches a preset water level, the vacuum pump automatically starts to complete the suction. This system uses less water, has high sewage discharge efficiency, and can effectively prevent odor diffusion and sewage leakage. However, regular maintenance of the vacuum pump and collection container is required to ensure normal equipment operation.
Water-storage type sewage system: It discharges waste into a storage tank through water flushing. When the sewage reaches a preset water level, the storage tank needs to be manually cleaned or replaced. It is suitable for places with sufficient water sources and easy cleaning, such as scenic spots and temporary event venues. During use, regularly check the water level in the storage tank and clean the sewage in a timely manner to prevent the growth of bacteria or the generation of odors.
Recirculating water perforation type: It is equipped with intermittent aerobic and anaerobic fecal sewage treatment devices, and accelerates the fermentation and decomposition of fecal sewage by adding biological strains and biofilm technology. The treated sewage is recirculated back to the toilet sanitary ware through a filtration device, achieving water reuse. This method is environmentally friendly and energy-saving, but requires regular supplementation of biological strains and inspection of whether the filtration device is blocked to ensure stable treatment effects.
Dry packaging type: It has no flushing device, and feces are collected by recyclable plastic bags at the bottom of the toilet. A new plastic bag is automatically replaced after each use, and the plastic bags are collected and transported to a treatment plant for unified treatment. This method requires no flushing at all, saving water resources, but requires regular replacement of plastic bags and ensures the airtightness of the collection container to prevent odor leakage.
Water-flush and waterless-flush suction types: In the water-flush type, there is a water tank at the top and a sewage tank at the bottom of the toilet; in the waterless-flush type, the sewage pool at the bottom of the toilet directly receives excreta. The sewage pools of these two types of mobile toilets have relatively small capacities. When the number of users reaches the specified number, water needs to be pumped or flushed in a timely manner; otherwise, water leakage incidents may occur. Regularly check the capacity of the sewage pool and arrange for dedicated personnel to be responsible for water pumping or cleaning to ensure normal use.
