| 摘要 |
<p>A system and a method for locally handling the water and sewage emissions from a group of consumer units are characterized by placing a smaller first treatment unit adjacent each consumer unit. The treatment unit may be a multi-compartment septic tank type unit and is optionally equipped with aeration and agitation means. The outlet from the smaller first treatment unit is connected in an air-free manner to a larger second treatment unit by means of pipes which can be pressurized selectively to a pressure level corresponding to the pressure level of clean water pipes, these pipes having a small diameter in relation to conventional pipes. The larger second treatment unit is common to all the consumer units of the group and part of the treated water taken from the larger second treatment unit is returned to the consumer units for usages that do not require a clean water quality. The treated water exiting from the second treatment unit is connected with the consumer unit sewage system, water closets, water seals and to junction points in the sewage network. The entire system will thereby assist in cleansing the sewage water, by virtue of the introduction of microorganisms to the system sewage network via the treated water exiting from the second treatment unit.</p> |
