Title
IBM Cognitive Technology Helps Aqualia to Reduce Costs and Save Resources in Wastewater Treatment
Abstract
AbstractThis work addresses operational management optimization problems in wastewater treatment plants. We developed a novel technology that allows control of such plants, based on real-time sensor readings, with cloud computing at the front end and state-of-the-art operations research and data science algorithms at the back end. We used a constrained Markov decision process as the key optimization framework. We tested our technology in a one-year pilot at a plant in Lleida, Spain, operated by Aqualia, the world's third-largest water company. The results showed a dramatic 13.5 percent general reduction in the plant's electricity consumption, a 14 percent reduction in the amount of chemicals needed to remove phosphorus from the water, and a 17 percent reduction in sludge production. Moreover, results showed a significant improvement in total nitrogen removal, especially in low temperature conditions.
Year
DOI
Venue
2017
10.1287/inte.2017.0907
Periodicals
Keywords
Field
DocType
MDP, constraints, WWTP, machine learning, IoT
Front and back ends,Sludge,IBM,Electricity,Markov decision process,Sewage treatment,Engineering,Optimization problem,Operations management,Cloud computing
Journal
Volume
Issue
ISSN
47
5
0092-2102
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Alexander Zadorojniy192.74
Segev Wasserkrug214012.25
Sergey Zeltyn317415.09
Vladimir Lipets4121.97