WASTEWATER MEMBRANES WHITE PAPERS & CASE STUDIES
Environmental regulations and water scarcity have created a need for economical water treatments that increase reuse. This paper will review the new PPG membrane that has a unique composite single-layer microstructure that provides high-flux, excellent separation capabilities and exceptional durability to improve the filtration and recovery of industrial wastewater.
Eco-Focused Winery Reuses Wastewater And Saves Space With TITAN MBR™
Recognized as authorities of bio-dynamic farming techniques and sustainable winemaking in France, family owners of a particular Sonoma County winery sought to utilize eco-friendly practices also in their California vineyards. After purchasing the winery in 2004, the family ownership began overhauling their vineyards and overall winery operation to revitalize every aspect of the winery, from soil to wine making.
Advanced On-Site Wastewater Treatment For Greenfield And Retrofit Applications
Many owners and operators of traditional decentralized municipal wastewater treatment plants, also referred to as on-site or off-grid treatment, are acutely aware their systems are at risk of becoming obsolete.
MBR System Treats Nut Processor’s High Strength Wastewater with Ease
The macadamia nut is indeed favored by many as a high quality nut, evidenced by its extensive use in desserts or simply as a premium stand-alone snack. One of the world’s leading producers of these delicious nuts produces more than 15 million pounds each year from its Hawaii processing plant.
Oxygen Removal From The Feedwater Of A Central District Heating System
Central district heating systems have gained attention in recent years because they can be more efficient than localized boiler units. The efficiency of district heating is usually due to power generation plants being able to produce heat and electricity simultaneously. District heating also helps prevent pollution by using advanced flue gas cleaning techniques.
Power Plant Uses Membrane Contactors To Remove CO2 From Water
A major power plant in Thailand is using 3M™ Liqui-Cel™ Membrane Contactors to remove carbon dioxide from a DI water system. The system is an expansion project and will be used to feed a high pressure boiler. Liqui-Cel membrane contactors are being used to lower the CO2 inlet into an Ionpure Electrodeionization (EDI) system. Carbon dioxide adds an ionic load to the EDI system, which can reduce the performance of the system. Manufactures of the EDI equipment suggest lowering the inlet CO2 to reduce the load on the equipment and improve the water quality.
Savings Helps MABRs Gain Traction In Municipalities
An MABR is essentially a biological wastewater treatment process that utilizes seemingly passive aeration through oxygen-permeable membranes. Oxygen transfer through the MABR membranes is diffusion based: driven by concentration differences such that oxygen passes from air at atmospheric pressure into water at a higher hydrostatic pressure. This oxygen transfer mechanism, wherein air is supplied to the process at very low pressure, is the reason MABRs have significantly lower energy consumption compared to other wastewater treatment processes, such as conventional activated sludge (CAS), that utilize diffusers. This energy savings is one of the key reasons MABRs are gaining traction in the municipal wastewater industry.
Membrane Technologies In Containerized Units Allow For Installation In A Small Footprint
After an international tender process, the Israel Electric Company (IEC) chose Fluence to design, manufacture, and supply containerized ultrapure water production systems for use as makeup water for heat-recovery steam generators (HRSG) and for NOx emission reduction at recently upgraded power plants across Israel. More than 15 units of 20 m3/h production modules, each fitted in two 40-foot shipping containers, were provided to seven power plants. Their compact design allowed for ease of installation, operation, and maintenance while meeting the customer’s demanding engineering standards.
Addressing Fouling Challenges In Water Treatment With RO Membrane
Reverse osmosis (RO) membranes are widely used in potable water, wastewater, and industrial applications. However, a major issue in the application of RO membrane technology for desalination and wastewater reclamation is membrane fouling. It limits operating flux, decreases water production, and increases power consumption. Membrane fouling also increases the need for RO plants to perform periodical membrane CIP procedure. These problems decrease process efficiency, increase operation cost, and raise environmental issues related to the CIP solutions disposal.
MABR Is The Big Cheese For This Dairy Farming WWTP
Hayogev is a residential development in the rural area of Jezreel Valley, with 1000 homes, agricultural fields and dairy farms. Located in an open field next to small farms, the local treatment facility handles wastewater from HaYogev and Midrach Oz. The customer was looking for a localized wastewater treatment solution to replace the existing pond system, which faced difficulties in treating the wastewater due to high levels of nutrients. A new state-level regulation concerning reclaimed water required the wastewater treatment plant (WWTP) operator to reduce the nutrients in the effluent stream. The solution had to be odorless and quiet, have low power consumption, and use the existing pond and structure.
Denitrification Technology Significantly Improves Polluted Chesapeake Bay Watershed
The 64,000 sq ft Chesapeake Bay Watershed includes parts of MD, VA, WV, PA, and NY. Of the 1,000s of WWTPs supporting nearly 18 million people in the watershed, 470 are designated by EPA as significant sources of nutrients and TSS. Algal blooms reduce DO levels in the water, killing plant and animal life — from marsh grasses to blue crabs to rockfish. Learn how De Nora TETRA Denite technology is treating 450+ MGD in the Bay.
As the cost of and demand for potable water increases, engineers, planners, and utilities need reliable, innovative methods for protecting this valuable resource. Cost-effective and environmentally sustainable wastewater collection and treatment systems are vital components in the water cycle and therefore require careful analysis. While there is no single solution for every site or community, traditional ‘big-pipe’ systems are rarely appropriate in sensitive environments; fortunately, today there are more options than ever to consider.