Water & Wastewater Asia November/December 2022

More documents

Recommendations

Info

IN THE FIELD FITS LIKE A GLOVE: Veolia supports Mölnlycke’s sustainable network Tucked in the industrial heart of Kedah, Mölnlycke’s newest glove factory will not only support regional demand for medical supplies, but also the company’s sustainable goals. At a glance, the plant is equipped with the following technologies: • Process Water Treatment Plant ° Multimedia filtration ° UV sterilisation ° Hydrex chemical dosing • Wastewater Treatment Plant ° Primary treatment/clarification – Multiflo Pack ° Biological treatment – AnoxKaldnes Moving Bed Biofilm Reactor (MBBR) ° Secondary treatment/solid separation –Idraflot Dissolved Air Flotation ° Sludge treatment – Sludge thickening and dewatering • Hubgrade Digital Monitoring System shared Olivier Estienne, country director for Malaysia at Veolia Water Technologies. Inaugurated in Sep 2022, the new Mölnlycke plant in Kulim, Malaysia, will enable the medical product manufacturer to expand their glove manufacturing capacity by 60%, allowing the company to meet current and future demand for surgical gloves. Mölnlycke also hopes to meet its goal for reducing water consumption by up to 50%, using Veolia’s digitalised systems 1 . In partnership with Veolia Water Technologies and Engie, Mölnlycke has also implemented sustainable energy and water/wastewater treatment facilities at the new plant, despite the manufacturing process for surgical gloves being a resource-intensive one. Jean- Christophe Guillou, vice-president of global Mölnlycke’s latest plant in Kulim, Malaysia, spans across 29,164m 2 operations for gloves at Mölnlycke, had approached Veolia for the project. Veolia’s solutions for the plant will enable the company to achieve a circular economy and reduce waste in their manufacturing processes, as well as recycle and reuse process water both on-site and/or via third parties. “What is difficult when it comes to wastewater treatment for industrial use is understanding what is being manufactured and what kind of wastewater is generated. Our process included visiting the existing team and the facility, to see what was the best sustainable design that Veolia could bring for the plant,” “Sustainability at Veolia entails enabling our customers to conserve resources. This can be water, power, or chemical resources. Glove manufacturing requires a lot of chemicals, similar to wastewater treatment. At each step of glove production, water is needed, and wastewater is generated. The idea was to find the best possible way to segregate wastewater such that we didn’t have to apply the full process to each part of the stream. In this way, energy and chemical consumption is reduced to what is needed for treatment. If we start diluting polluted water, for example, we’d need to treat a higher volume of water. However, if we treat only a small, concentrated amount of water, we will only need to bring in the chemicals needed for that volume,” explained Estienne. Another aspect of Veolia’s sustainable model was embedded in Mölnlycke’s 26 WATER & WASTEWATER ASIA | NOVEMBER/DECEMBER 2022
IN THE FIELD schema for the Kulim plant itself. As the site will be built in stages, Veolia will match their services to its corresponding phases. The first stage saw Veolia helping Mölnlycke comply with discharge standards, while the second will aim at improving water reuse and striving towards the goal of zero water discharge. Altogether, these implementations will support Mölnlycke in their efforts towards reducing carbon footprint. A DIVE INTO THE KULIM PLANT Water and wastewater treatment begins in the Process Water Treatment Plant, which includes multimedia filtration and UV sterilisation. Within this process, raw water from Syarikat Air Darul Aman (SADA) is treated chemically before it flows into the multimedia filter (MMF), at a flow rate of 100m 3 /h with more than 2mg per litre of chlorine. To comply with stringent bacterial count requirements, UV disinfection is deployed as the last treatment step prior to consumption at the glove production line. The objective of this stage is the reduction of total suspended solids and bacteria count. Meanwhile, the wastewater treatment plant has been distinguished into three different stages and objectives. In the primary treatment and clarification stage, wastewater from the surgical glove production line flows into the Multiflo unit. Sedimentation begins here where suspended solids and specific minerals are blended with coagulants to form large, easily settled flocs. These flocs accumulate at the bottom of the equipment while clarified water flows to the next phase for further treatment. Here, total suspended solids and zinc are reduced, and the accumulated sludge in the bottom of the tank is regularly removed either via a suction draw-off or scraper mechanism. After sedimentation, the clarified wastewater flows into the biological MBBR tank for biodegradation. In this 1 2 biological treatment stage, Veolia’s biofilm carriers move freely by aeration, while microorganisms feed on contaminants and further purifies the water as part of its biological activity. Ammonia, nitrogen, and BOD/COD are removed as a result. The wastewater stream is then preconditioned with coagulant and flocculant. This is where suspended solids are brought to the surface of water via microbubbles as part of the enhanced separation, through the Idraflot dissolved air flotation. Floated sludge is then scraped off from the water surface. Thereafter, sludge from the Idraflot and Multiflo is then chemically conditioned for further thickening before being pumped into the filter press for dewatering. The aim is to achieve 20% dryness of dewatered sludge. THE WIDER AGENDA Mölnlycke’s wastewater treatment processes forms part of a greater plan for resource conservation in Malaysia. The recent 12th Malaysia Plan highlighted the government’s plans for comprehensive water transformation, with integrated wastewater treatment plants to be constructed for the management and control of effluent discharge in industrial areas, and encouraging a circular economy in the water sector. “What the government wants is closely aligned to what multinationals have set as their KPIs; it is also similar to what the people want. Reducing consumption and addressing water scarcity constraints are the most pressing factors — though Malaysia receives a lot of rain, water is distributed unequally across the country. Klang and Kuantan, for example, face water scarcity issues annually. Similarly, with more 1 Clarified wastewater is further purified as it enters the MBBR tank, where biofilm carriers remove BOD, ammonia, and nitrogen 2 The Idraflot removes suspended solids, oils and greases, and insoluble COD industrial facilities being built in Kluang and Penang, water resources are expected grow tighter. “The target, then, is to ensure that we do not overuse water reserves. Veolia provides its clients with access to the water they need by preserving and replenishing them. With that, we’re pushing wastewater reuse, which can be applied across a variety of applications, be it landscaping, flushing, or drinking.” With the government leading the way forth, and multinationals such as Mölnlycke setting the tone for a greener future, the Kulim plant was a success for all involved across the board. Estienne also attributed this to the planning team’s adherence to its sustainability targets and its criterion-based decision making hastened the construction process. As the plant begins the first phase of its operations, Veolia is keen on working with the company further to get a stronger grasp on what will be needed in the years moving forward. “Our on-site team will continue to work with Mölnlycke to monitor and study their wastewater streams over the coming years — especially if there are changes to the composition of the wastewater produced. This way, we can provide solutions to address Mölnlycke’s needs and achieve their long-term sustainability targets.” Reference 1 https://www.molnlycke.com/news/molnlycke-news/molnlycke- inaugurates-new-plant-and-accelerates-to-meet-future-demand- for-supply-and-sustainability/ WATER & WASTEWATER ASIA | NOVEMBER/DECEMBER 2022 27
Page 1 and 2: NOVEMBER / DECEMBER 2022 www.waterw
Page 3 and 4: @tsurumiavant
Page 5 and 6: CONTENTS 60 38 38 Digitalisation
Page 7 and 8: Elektra Connecting you to your chem
Page 9 and 10: NEWS NX FILTRATION TO BE PART OF AC
Page 12 and 13: NEWS renews Grundfos’ profound co
Page 14 and 15: NEWS SOFTWARE ASSET FOR WATER INVES
Page 16: NEWS RESEARCH FROM ABB SHOWS HOW CI
Page 19 and 20: SINGAPORE FOCUS based solutions can
Page 21 and 22: IN CONVERSATION WITH How will SUEZ
Page 23 and 24: IN CONVERSATION WITH in place; gett
Page 25 and 26: IN CONVERSATION WITH Water is not t
Page 27: IN THE FIELD 1,200mm, with unit pre
Page 31 and 32: FOCUS THE FUTURE FOR PUMPS, IIoT an
Page 34 and 35: FOCUS WASTEWATER TREATMENT: A deep
Page 36 and 37: FOCUS Compressed air has an importa
Page 38 and 39: FOCUS be fundamentally reviewed. So
Page 40 and 41: FOCUS DIGITALISATION AS a critical
Page 42 and 43: FOCUS CUTTING ENERGY CONSUMPTION TH
Page 44 and 45: FOCUS HOW ASIAN GOVERNMENTS can red
Page 46 and 47: FOCUS HOW INDIA CAN BALANCE manufac
Page 48 and 49: FOCUS GODIGITAL WATER: The digital
Page 50 and 51: FOCUS not have a command centre in
Page 52 and 53: HOTSEAT semiconductor plants, pharm
Page 54 and 55: HOTSEAT WATER TECHNOLOGIES COMPANY
Page 56 and 57: [Physical event] SWA 19th Annual Ge
Page 58 and 59: SWA WELCOMES NEW MEMBERS (joined fr
Page 60 and 61: ON OUR RADAR ENERGY RECOVERY LAUNCH
Page 62 and 63: ON OUR RADAR THE SMART RTU dedicate
Page 64 and 65: SNEAK PEEK INDO WATER EXPO & FORUM
Page 66 and 67: ADVERTISERS’ INDEX INDEX OF ADVER

Water & Wastewater Asia November/December 2022

Create successful ePaper yourself

Delete template?

Save as template?