求翻译：而无磁粉反应器中，当污泥受到冲击时，仅依靠自身絮凝能力形成的絮体很容易被冲散而随水流出；另外微生物受到废水冲击后活性降低甚至死亡，从而导致无磁粉反应器内污泥浓度下降。是什么意思？

In non-power reactor, when sewage sludge is shock, flocculation of only rely on our ability to form aggregates can easily be dispersed with water outflow; microbial activity reduce waste water after impact, and even death, resulting in a decline in non-magnetic powders sludge concentration in the reactor.