In order to become greener, everyone is looking for ways to reduce Wastewater Treatment their carbon footprint, including communities that want to make their operations more energy-efficient. An excellent opportunity to turn brown into green is your wastewater treatment plant (WWTP).
Approximately 2% of the electricity produced Aqua pure water treatment in the UAE is used for wastewater treatment and water disposal. In the next 20 years, operational costs are expected to increase 30% to 40% due to increased levels of treatment and maintenance. Engineering of Wastewater: Treatment and Reuse. In 2002. This is the 4th edition of Metcalf & Eddy, Inc.
Energy conservation can improve your bottom line or provide regulatory-rate relief to your community’s citizens by reducing energy consumption in WWTPs. Here are some suggestions for reducing your plant’s carbon footprint, regardless of whether your plant is running at peak efficiency.
1. Pump station upgrades
In virtually every community’s collection system, one or more pump stations account for a significant portion of the utility’s energy usage. Pumps designed in the past typically operated at one speed and cycled on and off. A wider range of flows can be handled by today’s pumps, motors, and drives. A pump upgrade can result in long-term operation and maintenance savings. Flow rates can also be matched to pump speeds using inexpensive and more reliable variable frequency drives.
2. Make the aeration process more efficient
Over 50% of the electricity consumption in an activated sludge wastewater treatment plant is attributed to the aeration system. Adding dissolved oxygen control systems to the air distribution system and upgrading the blowers could optimize aeration and reduce the blowers’ electricity consumption. Consider replacing older blowers with high-efficiency water treatment turbo blowers, which have a wide range of operation and can be controlled based on the level of dissolved oxygen in the water. Does your diffuser system need to be replaced? It may be possible to improve oxygen transfer efficiency by replacing the diffuser grid with new fine-pore or ultra-fine-pore diffusers.
3. Improve the management of sludge
A wastewater treatment facility’s solids handling process consumes over 20% of its energy, and pumping and disposing of solids require energy as well. Cogeneration, or generating electricity and heating water using biogas, is a great way to save money and energy.
4. Nutrient Recovery/Recycling
Fertilizers contain phosphorus as an essential component. It may be feasible for your plant to create a marketable commercial grade fertilizer by using biological phosphorus removal. As a result, the utility gains a new revenue stream while improving sidestream performance of the plant by reducing phosphorus loading in recycle streams.
5. Disinfection is not necessary
Replace chlorine disinfection with an ultraviolet (UV) light disinfection system to eliminate costly and hazardous chemicals. Manufacturing and transporting chlorine and dechlorination chemicals are expensive and energy-intensive. It is a major safety benefit to decommission chlorination systems that use hazardous energy. UV disinfection systems consume minimal energy.
6. Lights and HVAC systems need to be updated
Lighting, heating, and cooling enclosed spaces consume a significant amount of energy (average 9.3%). Your plants may benefit from installing new high-efficiency T-8 fluorescent lighting fixtures instead of old T-12 fluorescent fixtures. Energy-saving improvements are often accompanied by rebates.
7. Make gravity as strong as possible
Gravity is provided by Mother Nature for free, and we recommend that you use it when improving your WWTP’s processes. Your plant’s flow transport should be considered. Do you take advantage of gravitational forces? In that case, can gravity be used instead of electric motors in your process?
8. Operations can be automated
Your plant’s treatment processes can be monitored in real-time with Supervisory Control and Data Acquisition (SCADA). Automation or remote control of your plant is possible with SCADA. Monitoring of equipment and alerts of emerging issues are possible with the system. With a SCADA system that is properly planned and integrated, operators can perform other tasks instead of being distracted by the SCADA system. As a result of monitoring continuous FILTER FOR DRINKING WATER processes and equipment, and trending of various energy usages over a period of time, it is possible to detect periods where energy can be saved or peak loads can be slashed.
Your community can maximize efficiency and minimize carbon footprint by implementing sustainable wastewater treatments as you can see. By implementing these solutions, you’ll quickly turn brown into green, and even save some money!