ETE Flowers WWTP A case study Mapal Green Energy Ltd Andy Carling UK Sales Manager

Transcription

1 ETE Flowers WWTP A case study Mapal Green Energy Ltd Andy Carling UK Sales Manager Bringing wastewater back to life Energy saving, Wastewater solution October 2013

2 Content General introduction What does Mapal Green Energy do? Case study ETE Flowers/Brazil Application background Mechanical surface aeration Fine bubble aeration The solution The results Benefits of floating fine bubble aeration Mapal Green Energy in the UK Summary Questions

3 General Introduction Based in Nesher northern Israel Technology provider with process engineering capabilities Unique Floating Fine Bubble Aeration System, efficient aeration for STP Process improvement and energy saving No down time and no interruption during installation Proven technology with more than 40 installations Mapal obtained the ISO 9001:2008 and ISO 14001:2004 International patent, granted in Israel, RSA, Russia, USA Installed first UK system June 2013 (Anglian Water)

4 What does Mapal Green Energy do? Advanced bespoke floating fine bubble aeration systems for biological secondary treatment of Waste Water Treatment Plants (WWTP) Municipal and Industrial Develop Design Manufacture Install Commission

5 Case Study: ETE Flowers - Brazil ETE Flowers - Brazil

6 Case Study: ETE Flowers - Brazil Background Municipal Wastewater Treatment Plant in Rio Claro, Sao Paolo Operates a sludge activated process Mechanical surface aerators Excessive energy costs Couldn t afford downtime to replace system

7 Case Study: ETE Flowers - Brazil Mechanical surface Aeration Mechanical surface aerators belong to first generation of oxygen transfer technologies. Oxygen efficiency transfer rate kgo 2 /kw Surface aerators bring the water to the air High maintenance cost due to electromechanical moving parts in the water High energy consumption Fixed mechanical surface aerators

8 Case Study: ETE Flowers - Brazil Fine Bubble Aeration Diffused aeration is the most modern and efficient way of aeration Fine bubble, producing mostly spherical bubbles 1 to 3 mm in diameter, discs or tubular diffusers Oxygen efficiency transfer rate kgo 2 /kw Diffused aeration bring the air to the water Low energy consumption Low maintenance cost due to no moving parts in the water

9 Case Study: ETE Flowers - Brazil SOTR (Standard Oxygen Transfer Rate) The SOTR value determine the efficiency of the aeration equipment. The higher the value less energy is needed for the aeration and more oxygen transfer Aerator Type Standard Oxygen Transfer Rate kgo 2 / kwh High-speed surface aerator Low-speed surface aerator Coarse-Bubble Turbines or jets (Fine-bubble) Fine bubble aeration Fine bubble aeration is by far the most efficient aeration method however it is limited to concrete reactors. Fine bubble aeration can save up to 70% of the energy and maintenance costs compared to mechanical surface aeration. Source : Aeration study by Prof. M. K. Stenstrom and D. Rosso University of California Los Angeles, University of California Irvine Feb 8, 2010

10 Case Study: ETE Flowers - Brazil Fine Bubble Aeration Fine bubbles Diffusers the most common and efficient way to supply oxidation to the biological process, however it have two main problems: Tubular Fine bubble diffuser Installation is limited to concrete basin since all the fine bubble diffusers must remain horizontal and fixed to the reactor floor. Downtime - In order to install fine bubble aeration system in existing reactors, it is necessary to drain and clean the biological reactor downtime of about six months. Biological reactor with Disc Fine bubble diffusers

11 Case Study: ETE Flowers - Brazil The solution The technology Unique Floating Fine Bubble Aeration System, innovative, patented and cost effective, modular system that can be installed in any lagoons or reactor. The benefits Up to 70% reduction of the O&M costs - Operational and Maintenance costs compared to mechanical surface aeration. No down time and no process interruption during installation Wet and Live Installation No technological risks proven technology with more than 40 installations

12 Case Study: ETE Flowers - Brazil The solution One 22kw surface aerator (coloured red) with actual energy consumption of kwh, was turned off and was replaced by 2 of Mapal's floating fine bubble aerators units connected to 12.5kw blower with actual energy consumption of 11.01kWh ENERGY SAVING OF MORE THEN 50% Total Payback time for all 3 surface aerators replacement years

13 Case Study: ETE Flowers - Brazil Date Efficiency of COD removal Efficiency of BOD removal Efficiency TSS removal of Before Mapal 15/10/2012 Before Mapal 11/11/2012 After Mapal AVG 20/11-25/12 70% 82% 43% 58% 86% 76% 82%(1) 74%(2) 90%(1) (1) Based on 15 actual site results. (2) Based only on 2 actual site results. International Patent

14 Mapal Green Energy Benefits of fine bubble floating aeration system Automatically adjustable to the water depth All the diffusers are 100% leveled from the water surface! No moving parts in the water Aeration and mixing for aggressive and hazard liquids Option for various type of material of construction Tubular diffusers to reduce the risks of fouling and scaling Modular system it is very easy to add units as needed, to position as needed ( nitrification & de nitrification) Stand alone units each unit completely independent Easy to replace the diffusers when it is needed Wet and live installation Robust stainless steal structure for long operational life

15 Mapal Green Energy in the UK Fine bubble floating aeration system First UK installation Awaiting imminent results by an independent consultant Looking to work with key framework agreement contractors Interest from major UK water companies

16 Summary General introduction What does Mapal Green Energy do? Case study ETE Flowers/Brazil Application background Mechanical surface aeration Fine bubble aeration The solution The results Benefits of floating fine bubble aeration Mapal Green Energy in the UK Summary Questions

17 Questions

18 Thank you