Reusing tissue paper mill effluent water as corrugated paper mill intake water: Case study of a new clean production measure

Citations Over TimeTop 21% of 2017 papers

Abstract

To relief the water shortage crisis in China, the Chinese government has initiated a series of clean production (CP) measures to reduce the freshwater consumption and wastewater discharge from paper industry. In this study, a new CP technology was introduced in the paper industry to reuse tissue paper mill effluent water as intake water of corrugated paper mill. The feasibility and impact of the new CP technology was investigated in three different scales, laboratory experiments, pilot‐scale testing, and long‐term implementation. Results show that the water quality of treated tissue paper mill effluent water is competitive with that of freshwater and some water quality indexes are even better, indicating that treated tissue paper mill effluent water is a suitable alternative to replace the freshwater as intake water for the corrugated paper mill. By reusing tissue paper mill effluent water as intake water of corrugated paper mill, most physical properties of different corrugated paper layers are improved or similar as those by using freshwater as intake water in all different scale experiments. Moreover, the new CP technology significantly reduced the freshwater consumption for the corrugated paper mill, eliminated the wastewater discharged from the tissue paper mill, and at the same time, lowered the operation cost for both paper mills in terms of freshwater consumption and wastewater treatment cost. Total 216,000 RMB will be saved every year with an assumption that tissue paper mill provides annual daily average 2000 cubic meter of effluent water to corrugated paper mill every day. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 934–941, 2018

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