معنی کلمه distillery wastewaters در متن زیر چی میتونه باشه ؟

Microalgae and cyanobacteria represent a possible new option for the bioremediation of distillery wastewaters since they have trophic independence for nitrogen and carbon. However, because they are light-dependent reactions, dilution of the colored effluents to be treated is required to avoid light blockage.