| 摘要 |
<p>The invention refers to a method for membrane filtration of a product in a membrane plant (1), containing the phases A) filtering the product with a first membrane system (2) of the membrane plant (1), B) cleaning the first membrane system (2) by a multi-step cleaning procedure including at least one rinsing-step with water and at least one cleaning step with a cleaning solution, resulting in at least one contaminated cleaning solution, C) filtering the at least one contaminated cleaning solution with a second membrane system (9), resulting in a recovered cleaning solution and D) using the recovered cleaning solution in a cleaning step of phase B).</p> |
