Dry wet separation squatting pan does not need water flushing. It is mainly aimed at the vast rural areas without sewers. Its principle is to separate the feces and urine. The nutrient rich and basically harmless urine is directly used as fertilizer after short-term fermentation. The feces containing parasitic eggs and intestinal pathogens are treated harmlessly by dry dehydration and natural degradation to form a mature humus recycling 。
1. Scope of use: as the dry type fecal and urine diversity toilet does not need water flushing, it is suitable for farmers in mountainous areas or water shortage areas.
2. Basic structure: it is composed of toilet house, fecal and urine diversity toilet, urine collection pipe, urine storage tank, manure storage tank, exhaust pipe, sun board, etc.
3. Toilet: the fecal and urine diversity squatting (seat) toilet has two outlets, the front is smaller for urination, the inner diameter of the urination opening is not less than 50 mm, and the lower end is connected with a urinary pipe to collect urine and connect with the urine storage tank; the larger mouth at the back end is used for defecation, the inner diameter of the defecation opening is not less than 160-180 mm, and is connected with the septic tank. Toilet cover can prevent odor from overflowing. If conditions permit, men's toilet can be set according to the needs and connected with urine collection pipe or urine storage tank.
4. 储尿池：容积约为0.5m3，建于阳光非直射面，冻土层以下，可加装水桶进行收集，适用于应用尿肥农户。 储粪池：依据地下水位的高低选择建于地上、地下或半地上。单储粪不小于0.8m3，建议长1200㎜、宽1000；双储粪池建议长度1500㎜高800㎜，每池有效体积应不小于0.5m3。
4. Urine storage tank: the volume is about 0.5m3, which is built on the surface of non direct sunlight and under the frozen soil layer. It can be collected by adding water bucket, which is suitable for the farmers who apply urine fertilizer. Septic tank: built on the ground, underground or semi ground according to the level of groundwater level. The single manure storage tank should be no less than 0.8m3, with a length of 1200 mm and a width of 1000 mm. The recommended length of a double tank is 1500 mm and the height is 800 mm. The effective volume of each tank should not be less than 0.5m3.
5. Exhaust pipe: exhaust pipe shall be installed at the upper end of the septic tank, which shall be at least 500 mm higher than the toilet roof, and rainproof cap (fly proof, wind proof, etc.) shall be installed
6. Avoid water impact. The harmless way of the toilet is to cover and dehydrate. The feces and urine should be completely separated to avoid water flushing. After defecation, dry ash (plant ash, furnace ash, yard soil, etc.) should be added into the manure pit. The amount of dry ash should be more than the amount of manure until the septic tank is kept dry. The covering time of plant ash and loess should not be less than 3 months, and the covering time of furnace ash and loess should not be less than 10 months Dry ash of no less than 100 mm shall be padded into the pit.