20 Subsequently, the ZnO NP concentration was further increased to 0.8 mg L −1 in phase P2, and the NRR decreased significantly to an average of 0.049 kg m −3 d −1 ( p < 0.05); both the ammonia and nitrate in the effluent presented an increasing trend.
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Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress.
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