In:
Waste Treatment and Recovery, Walter de Gruyter GmbH, Vol. 3, No. 1 ( 2018-07-26), p. 1-7
Abstract:
Washing detergents in process wastewaters from fine chemical industry produce high Chemical Oxygen Demand (COD), which poses a serious environmental problem. Method has to be found, which follows the principles of circular economy so that the treated water can be recycled or reused. Heat pump vacuum evaporator is evaluated in order to reduce the Chemical Oxygen Demand of process wastewater with washing detergent content from initial 7500 mg O 2 /L to a lower value below the effluent limit , which is 1000 mg O 2 /L. Yield and COD rejection are determined for the evaluation of selected treatment. Experiments are investigated with LED Italia R150-v3 pilot apparatus. Different evaporation pressures were applied during measurements. It The highest removal or reduction of in the Chemical Oxygen Demand was reached certainly using the lowest possible pressure, which is 40 mbar.
Type of Medium:
Online Resource
ISSN:
2544-8544
DOI:
10.1515/wtr-2018-0001
Language:
Unknown
Publisher:
Walter de Gruyter GmbH
Publication Date:
2018
detail.hit.zdb_id:
2977669-7
detail.hit.zdb_id:
2863979-0