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Thailand, Veolia Water Technologies, shared, “Rolf was provides an extra layer of security to remove any remaining
firm about maximizing wastewater treatment flow to suspended solids from the wastewater. An ideal design for
allow additional capacity for greater flow treatment treating wastewater in a space-constrained environment,
requirements in the next ten years. Using the results from the Veolia’s turnkey solution also ensured effective control of
preliminary study, we then worked together to integrate biological activity and high-quality effluent, while allowing
Veolia’s technologies into one federated solution for the for higher organic loading rates.
Ovaltine plant.” Commenting on his involvement in the ABFT project,
One of ABFT’s main requirements for the wastewater Chanchai Borwornwuttipong, Project Engineer from
treatment plant was the ability to maximize wastewater flow the Design & Build Projects Team at Veolia, shared, “The
for both existing and projected future flow requirements in focus of this turnkey project was to properly treat the raw
the next decade. To address that, Veolia implemented a wastewater to enable discharge into local streams, so
design flow of 1,000 m3/day with a peak flow of 1,200 m3/ that was what we focused on. The addition of the second
day, which is a high flow rate for an area measuring 30 m DAF clarifier and the Drumfilter system was to ensure that
x 26 m. Apart from planning for future growth, the Veolia the treated wastewater complies with local discharge
team also helped ABFT achieve other targets through its standards and aligns with ABFT’s global environmental
proprietary technologies, including a reduction of the COD sustainability goals.”
concentration from 11,500 mg/L to 120 mg/L, a trim on FOG In addition to its compact nature, Veolia’s automated
levels from 1,500 mg/L to 5 mg/L, and the moderation of technologies allow ABFT to function on one-operator shifts
total suspended solids from 1,500 mg/L to 50 mg/L. and enables remote monitoring. With Veolia’s wastewater
As the Ovaltine factory was situated in a residential plant design, ABFT achieved ease of operation, a reduction
neighborhood, Veolia had to ensure that no odor would in sludge production, and lower levels of electrical
escape wastewater plant that was to be built within consumption. The plant also generates a considerable
the facility. The Veolia team took all of the factors into volume of biogas via the UASB reactor, offering ABFT dual
consideration and proposed several cutting-edge and fuel options for its boilers. These positive results contributed
space-saving technologies for this turnkey project. These to an overall lower operating expenditure for ABFT.
include Veolia’s Dissolved Air Flotation (DAF), Biothane® Discussing ABFT’s expectations for Veolia, Rolf shared,
Upflow Anaerobic Sludge Blanket (UASB), AnoxKaldnes™ “It was important that we install a robust wastewater
Biological Activated Sludge™ (BAS), and the Hydrotech™ plant that can handle peak-loads and fluctuations. We
Drumfilter. appreciate the lengths that Veolia went to in customizing
The wastewater coming out of the Ovaltine factory the most suitable and compact turn-key solution for the
requires pretreatment before it undergoes the treatment Ovaltine factory. It was refreshing how the team pushed the
process proper. The post-production influent first enters boundaries to achieve desirable results. Our experience
the DAF unit for FOG removal. The DAF process also with Veolia’s engineers was a positive and collaborative
prepares the raw wastewater for the upcoming anaerobic one, and we appreciate their flexibility to accommodate
treatment. The conditioned wastewater is then pumped our requirements.”
into the Biothane® UASB reactor, where a biological At present, the Ovaltine facility is focused on achieving
conversion process converts COD into biogas. The sustainable wastewater management. However, Rolf
anaerobic treatment is particularly suitable for F&B disclosed that they are open to incorporating wastewater
manufacturers because wastewater from the industry recycling technologies for onsite reuse purposes, provided
contains organic compounds from processed materials, effluent recycling becomes more viable. “For sure, it
making biological wastewater treatment advantageous. A would be good for us to reuse treated wastewater for
proven and reliable process, the UASB technology features non-potable purposes,” Rolf said. “And that is a topic that
a special influent distribution system that ensures that the we will definitely revisit in the future. I am satisfied that we
wastewater is equally distributed over the entire reactor can now confidently discharge our wastewater, and it is
surface area. a way that Ovaltine is playing its part towards building a
Due to ABFT’s high COD inlet concentration, Veolia more sustainable future in Thailand – for our business and
integrated the AnoxKaldnes™ BAS™, a combination the environment.”
of Moving Bed Biofilm Reactor (MBBR) technology with Michael concluded, “Sustainability is at the heart of
conventional activated sludge (AS) to further remove what we do here at Veolia. We understand the necessity
any remaining COD dissolved in the wastewater, and to to create and sustain access to resources. This project
promote a stable and more efficient activated sludge demonstrated Veolia’s ability across disciplines and
process with improved sludge settling characteristics. Using reaffirms our expertise as a trusted design-and-build
biofilm-coated carriers, MBBR stabilises discharge quality partner for clients across different industries. As an
and optimises the water tank for future tertiary treatment established water and wastewater solutions specialist,
and reclaim. Veolia was able to provide ABFT with the expertise and
The effluent then flows into a second DAF clarifier for the flexibility that it needed. At the end of the day, we
biological sludge separation, before finally entering the helped another leading company to achieve sustainable
Hydrotech™ Drumfilter system. The Drumfilter features a wastewater management, and that is a huge win for all
larger filter area to promote higher efficiency levels, and parties involved.” AW

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