European Wastewater TAG Summary Who we are The Problem The - PowerPoint PPT Presentation

WATER & ENVIRONMENT TECHNOLOGY 23 rd March 2016 European Wastewater TAG

Summary  Who we are  The Problem  The Solution  Background  OptimEDAR  Benefits  Comparison to other Technologies  Case Study  Other Technologies  Examples  Conclusions  Cost  Status of Development and Way forward  Summary and Next Steps with Water Companies  Appendix OptimEDAR: TAG 23 rd March, 2016 | 2 www.adasasistemas.com

Who we are Own Water Intense Water & 20 Years Quality Monitoring Technical 25+ Years Environment R&D Products & Specialisation Expertise and innovation IT Technology ADASA, a specialised engineering company delivering technological solutions for water, the environment and meteorology.  Set up in 1988.  13 M € turnover (2015).  More than 130 employees.  Activity in more than 20 countries. OptimEDAR Technology developed in Spanish IDI-20080686 with the University of Badajoz, and in the CIP Eco/11/304491. OptimEDAR: TAG 23 rd March, 2016 | 3 www.adasasistemas.com

The Problem GROWING CONCERN: Maintaining levels of effluent quality in a context of rising energy costs are a growing concern. Basic problems of medium and small WWTP  Power consumption: A significant portion of the consumption required in the process of treating wastewater is spent in the aeration of the biological reactor.  Production, treatment and disposal of sludge , fitting together their optimisation with the guarantee of maintaining the quality of the effluent. OptimEDAR: TAG 23 rd March, 2016 | 4 www.adasasistemas.com

The Solution: Background Aeration cost = 45-75% of energy (without influent / effluent pumps) OptimEDAR: TAG 23 rd March, 2016 | 5 www.adasasistemas.com

The Solution: Background  Strategies for aeration optimisation.  Efficiency in the diffusors.  Actions on the aeration system.  Actions on the set points.  Maximisation of biogas production. OptimEDAR: TAG 23 rd March, 2016 | 6 www.adasasistemas.com

The Solution: OptimEDAR  Optimisation of the operation of the biological reactor in WWTP, based on an innovative on- line monitoring & control of the aeration process.  Main goals :  Reduce the energy consumption.  Ensure a higher quality of the effluent, specially N+P .  Minimise sludge production. Expected benefits  Reduce energy consumption by average 20%, by adapting blower operation to the actual reactor load.  Enhanced water quality of effluents with at least 20% less nitrogen and phosphate.  Reduction of 15% in the production of sewage sludge. OptimEDAR: TAG 23 rd March, 2016 | 7 www.adasasistemas.com

The Solution: OptimEDAR  Description  Optimal aeration control thanks to an innovative on-line monitoring of the biological reactor.  Application of ‘virtual sensing‘ techniques: calculation of Equivalent Organic Charge (EOC) by measuring DO and Redox.  Blowers are operated according to EOC, instead of the typical DO control.  Reduction of the blowing time while allowing longer denitrification cycles.  ‘Add - in‘ solution, easy to install, based on robust probes with low maintenance requirements.  Features  Simple and robust.  Easy to install.  It does not interfere with existing automation: superimposed on the control system.  It adapts to changes in influent load.  Reliability and easy of operation. OptimEDAR: TAG 23 rd March, 2016 | 8 www.adasasistemas.com

The Solution: OptimEDAR  Applicability  Active sludge WWTPs with biological reactor aerated with blowers.  Specially for plants where influents suffers significant variations in organic matter load.  Recommended WWTP constructive features  Reactor where is possible to establish a perfect mixture hypothesis.  Enough power in the aeration system to absorb loads.  Stirring system independent from aeration.  High hydraulic times, or presence of homogeniser.  Conditions of the process  WWTP with a cyclical pattern of load.  Adequate daily load, that does not saturate the operation of the plant.  Non optimised control: set points of oxygen, or control by on-off time.  Excess of nitrates in the effluent. OptimEDAR: TAG 23 rd March, 2016 | 9 www.adasasistemas.com

The Solution: OptimEDAR Control Cabinet Control Centre Dissolved Oxygen Sensor RedOx Sensor Sensors Cabinet (*) Using market components . OptimEDAR: TAG 23 rd March, 2016 | 10 www.adasasistemas.com

The Solution: OptimEDAR OptimEDAR: TAG 23 rd March, 2016 | 11 www.adasasistemas.com

The Solution: Benefits  Reduction of operating costs.  Less energy consumption.  Less reagents consumption.  Less sludge treatment.  Increase the quality of the effluent.  Restore balance in case of major changes occur in the influent or uncontrollable external conditions.  Stability of the biological reactor.  Removal of carbonic demand.  Removal of nitrogen content.  High performance on phosphorus removal.  Improve operational efficiency.  Optimises the energy consumption.  Sludge stability, providing an optimal state for water treatment. OptimEDAR: TAG 23 rd March, 2016 | 12 www.adasasistemas.com

Comparison to other Technologies No dependence Optimisation Robust Organic matter Nutrient on a small Type of Control of power equipment, low removal Removal range of consumption maintenance measurement    *  x Time    x x Oxygen x    x pH     x Ammonia      Redox (OptimEDAR) (*) Removal of nitrate and phosphate if OFF is long. No detected peaks of contamination or NTK. OptimEDAR: TAG 23 rd March, 2016 | 13 www.adasasistemas.com

Case Study WWTP Albuera (SPAIN)  WWTP  Population Equivalent : 4,000 PE  Total Volume 1,000 m 3 /day :  Mean flow : 41.67 m 3 /h  Province: Badajoz  Country: Spain OptimEDAR: TAG 23 rd March, 2016 | 14 www.adasasistemas.com

Case Study: WWTP Albuera (SPAIN) BEFORE OptimEDAR Nitrates Concentration (WWTP Output) OXIGENO REDOX 16 250 14 200 12 150 10 100 50 8 0 6 -50 4 -100 2 -150 0 -200 01/12/2008 01/12/2008 02/12/2008 02/12/2008 03/12/2008 03/12/2008 04/12/2008 04/12/2008 05/12/2008 AFTER OptimEDAR OXIGENO ECO REDOX 16 250 14 200 12 150 10 100 Important reduction of nitrates concentration after 50 8 0 6 installing OptimEDAR: -50 4 -100 3 days after the commissioning the nitrate 2 -150 concentration fell from 170 mg/l to 4 mg/l . 0 -200 12/12/2008 12/12/2008 13/12/2008 13/12/2008 14/12/2008 14/12/2008 15/12/2008 15/12/2008 16/12/2008 20% energy saving Oxygen demand curve shows a decreasing of the operation time and the number of maneuvers for blowers. OptimEDAR: TAG 23 rd March, 2016 | 15 www.adasasistemas.com

Case Study: WWTP Carme (SPAIN)  WWTP  Population equivalent: 4,023 PE  Mean flow: 518 m 3 /day  Province: Barcelona  Country: Spain OptimEDAR: TAG 23 rd March, 2016 | 16 www.adasasistemas.com

Case Study Case: WWTP Carme (SPAIN)  Energy consumption 1 Biologic Reactor Oxygen Control (1 month) OptimEDAR (1 month) Blowing ON (monthly hours, estimated) 212 165 Power consumption blower 22 kw (kwh) 4,675 3,630 % Blowers energy reduction 22%  Plant Performance February 2013 (without OptimEDAR) February 2014 (with OptimEDAR) DQO (mg/l) Input: 240; Output:12 95% Input: 1,365; Output: 16 96% Input: 87; Output: 6 93% Input: 133; Output: 3 98% DBO (mg/l) N Total (mgN/l) Input: 42.9; Output: 32 25% Input: 33.74; Output: 7.41 78% P total (mgP/l) Input: 5.54; Output: 2.6 53% Input: 4.43; Output: 2.25 49% OptimEDAR: TAG 23 rd March, 2016 | 17 www.adasasistemas.com

Cost  Cost to the end user Recommended DESCRIPTION Retail Price * 19.504 € / 15.227 £ Optimedar: control and probes cabinets 13.440 € / 10.493 £ Engineering (without travels) 7.840 € / 6.121 £ Installation (without travels) 10.020 € / 7.823 £ Maintenance and adjustments 1 year (without travels) * 1 € = 0,7807 £  ROI  Only in energy, depends on the power of blowers: up to 2 years  OPEX  Maintenance of proves OptimEDAR: TAG 23 rd March, 2016 | 18 www.adasasistemas.com

Status of Development and Way Forward  What is currently operating in the field?  Two WWTP under demonstration in R3Water project:  Empuriabrava (Spain). Demonstration in a medium plant (70.000 PE) with high seasonality.  Wijer (Belgium). Demonstration in a small plant with specific phosphorous removal requirements.  How do you wish to proceed in the market?  Agreement with water utilities in charge of WWTP operation.  Agreement with added value distributors or engineering companies. OptimEDAR: TAG 23 rd March, 2016 | 19 www.adasasistemas.com