The thorny issue of membrane biofouling in membrane bioreactors (MBR) calls for new effective control measures. Herein. D-amino acid (DAA) was employed to mediate MBR membrane biofouling by inhibiting biofilm information and disintegrating formed biofilm. Different DAA control ways involving membrane property. https://www.mamapaisa.com/product-category/restoring-leave-on-treatment/