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The degradation of dyestuffs: Part II Behaviour of dyestuffs in aerobic biodegradation tests
Affiliation:1. School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou 510006, China;2. School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China;1. Department of Environmental Sciences, University of California Riverside, Riverside 92521, USA;2. Soil Science Division, Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad 38000, Pakistan;3. Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;4. Department of Botany and Plant Sciences, University of California Riverside, Riverside 92521, USA;5. Department of Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi 46300, Pakistan;6. Department of Soil, Water and Agricultural Engineering College of Agricultural and Marine Sciences, Sultan Qaboos University, 123, Oman;7. Department of Environmental Sciences & Engineering, Government College University, Faisalabad 38040, Pakistan;8. University of Agriculture Faisalabad, Sub-campus Burewala, Pakistan;1. Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi Zhuang Autonomous Region, Guilin 541004, China;2. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guilin University of Technology, Guilin 541004, China;3. College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China;4. Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials in Guangxi, China;1. Laboratory Agro-Resources, Organic Polymers and Process Engineering (LARPOGP)/Organic and Polymer Chemistry Team (ECOP). Faculty of Sciences, University Ibn Tofail, Kénitra, Morocco;2. Laboratory of Geosciences and Environment, Team Development Geo Resource and Renovation Territories, Department of Geology. Faculty of Science, University Ibn Tofail, Kenitra, Morocco
Abstract:Eighty-seven dyestuffs have been tested in short-term aerobic biodegradation tests. The results confirmed that dyestuffs are most unlikely to show any significant biodegradation in such tests. With many dyestuffs a substantial colour removal was observed which may be attributed to the elimination of the dyes by adsorption. In some cases DOC (Dissolved Organic Carbon) removal did not correlate with colour removal and this is attributed to the presence of non-coloured organic components in the dyestuff.
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