Zero Discharge Concepts in Five Star Hotel – A Case Study
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 7
Abstract
Concept of zero liquid discharge (ZLD) not only offers a solution to protect water bodies from pollution by the disposal of large quantity of industrial and municipal wastewater but also provides a sustainable approach for conservation of water resources by the process of reuse and recycle of wastewater. Industry & commercial establishment should realised that adopting this concept, as the resources getting limited and its cost being increased, leads to (i) tangible economic benefits and (ii) safeguard the environment quality lest apply pollution pays principles on polluters due to the environmental damage. Hence ZLD C is must to be followed. The present paper aims at to assess the zero liquid discharge in a large commercial complex – Hotel Andaz ,Aerocity, New Delhi. The study includes assessment of water consumption, wastewater generation from different sections such as kitchen, laundry, and toilets etc. and their treatment with the application of different waste treatment systems. Base on quality of treated wastewater, reused and water balance was prepared .The treated WW (at pre-stage after chlorination followed by dual media filter and activated carbon (AC) filter) showed water quality parameters as BOD , COD , and TSS at 5.0, 10.0 and 5.0 mg/l respectively. The oil & grease was negligible and pH = 6.5 to 8.5. The treated water at this stage found to be suitable for re-use in secondary purposes mainly in horticulture, flushing of toilets or floor cleaning. However, the treated water at this stage contain hardness so water was further treated at stage -2 to improve its quality which is quite suitable for reuse as boiler feed, cooling water system, and fire fighting demand. The findings suggest that by proper adoption and strict monitoring and implantation of wastewater treatment systems at various stages the zero liquid discharge is successfully achieved.
Authors and Affiliations
A. Mubara, F. Ahmad, K. Ahmad, Inamul- Haq
Keywords
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