The present invention generally relates to the water recycle system that flush the toilet using the sewage water after filtration and purification. The key factor for this invention is that the water for flushing the toilet does not require high purified quality, so the cost of filtration and purification is very low.
Water shortage is a serious problem all over the world. Currently, most sewage water is discarded after people flush the toilet, take shower, wash hands, clothes or food. Everyday people use toilet many times and waste lots of water. In some area without water supply, restroom is very dirty without flush water. This invention can solve those problems with low cost. In places where water shortage is serious, this invention can save lots of water fee.
An object of the present invention is to utilize the sewage water or recycle the toilet flush water for toilet flushing after certain ways of filtration and purification. To utilize the sewage water, the current water supply system needs to be modified in that the supply toilet flushing water is separated from the water for other usage and the discarded toilet flushing water is also separated from the other sewage water.
In accordance with the present invention, the sewage water is collected in a tank. The sewage water is filtered with some filtration equipment and purified with some chemical material. The clean water is pumped to the water tank specific for toilet flushing only. The pump powered by electricity is controlled by two water level controller switches, one in dirty water tank and one in clean water tank. If both tanks don't have enough water, the clean water tank will be supplemented with the regular clean water form the water supply pipe, controlled by a electric magnetic valve.
In accordance with the present invention, the discarded toilet flush water is collected in a water tank. The sewage water is filtered with some filtration equipment and purified with some chemical material. The processed water is pumped to the water tank for toilet flushing. The pump powered by the electricity is controlled by two water level controller switches, one in sewage water tank and one in processed water tank.
In accordance with the present invention, the water after filtering and purification can be pumped by manual air pump to the processed water tank. In such a situation, a sealed tank with one-way water valve is needed. When a person pushes the manual air pump, it will increase the pressure inside the tank, close the one-way valve and push the water to the processed water tank.
In accordance with the present invention, this water recycle system can be installed in almost any type of building that has toilets and water supply pipe system, movable restroom, restroom without water and power supply. The size of the tank depends on the number of people using toilets.
Many variations of design can be derived from this invention. For instance, the tank in the drawings is a cube, but it can be changed as a ball or columnar body. The position or shape of some components also can be changed.
There are four figures in the attached drawings.
Following are the detailed information about the primary components of the equipment.
This water recycle system can be installed in almost all buildings with minor modification for the existing water pipes, separating the supply and discharge water pipe for toilet flush from other daily living water supply pipes and sewers.
When the sewage water (11) from the sewers of daily living water or toilet flush water comes into the water tank (1), the garbage will be sedimented and deposited in area (7). The sewage water (11) is filtered by filtration layer (2). The filtered water flows to area (8) and purified by chemical materials (33) that comes to the water tank area (8) through pipe (34). The purified water is filtered by the second filtration layer (3). There could be more purification area and filtration layer, depending on the required quality of the clean water. Finally, the purified water flows to area (9).
If the pump (14) is powered by electricity, the pump (14) will deliver the processed water from water tank area (9) through pipe (5) to the upper level water tank (17) through pipe (15). When the water level goes up nearing the top of the water tank (1), the water level controller switch (12) will start the pump (14). When the water level goes down nearing the bottom of the water tank (1), the water level controller switch (12) will stop the pump (14). When the water level goes up nearing the top of water tank (17), the water level controller switch (18) will also stop the pump (14). When both tanks (1) (17) don't have enough water, the water valve (36) will be opened to supplement regular clean water through pipe (35). If the water valve (36) is an electric magnetic valve, it is controlled by water level controller switch (12) (18).
If the pump (22) (31) is operated by hands or foot, a sealed water tank (20) is used. The purified water will flow to the sealed water tank (20) through one-way water valve (23). The manual air pump (22) (31) will push air to the sealed water tank (20) through pipe (21). The increased pressure in the water tank (20) will close the one-way water valve (23) and push the clean water to the upper level water tank (17) through pipe (5) (15). There are many ways to display the water level in upper level water tank (17).
The processed water tank (17) will deliver the processed water to the toilet water tanks through pipe (32). Thus, the toilet flush water can use the recycled water from discharged toilet flush water or used living water. If the toilet flush water uses the recycled water from discharged toilet flush water, stool will accumulate quickly in tank area (7) and needs to be cleaned regularly, from few days to few weeks, depending on number of people using the toilet and the volume of the water tanks. The stool collected can be used as fertilizer for farmers.