| 摘要 |
The invention relates to a method and arrangement for wastewater purification. The wastewater to be purified is conveyed into a septic tank (3), where solids separate from the wastewater. After the solids are separated the purified wastewater is conveyed to filter purification, i.e. to an absorption field (21) or to a filter field (7), for example. The wastewater is conveyed to the filter purification by pumping a predetermined batch of wastewater forward at a time. Purification chemical is dispensed into the septic tank (3) in proportion to the batch to be pumped. |
