Reply to comments on "Low-cost chitosan-calcite adsorbent development for potential phosphate removal and recovery from wastewater effluent" by Pap et al. [Water research 173 (2020) 115573].

This letter is in response to the comments of Dr Hu and Dr Zhang on "Low-cost chitosan-calcite adsorbent development for potential phosphate removal and recovery from wastewater effluent" (Pap et al., 2020). We thank Dr Hu and Dr Zhang for their interest and comments, and having reflected, we wish to provide some clarification.