Decanter centrifuge

The decanter centrifuge performs the solid/liquid separation in a centrifugal force.
The machine modules are sealed, leading to a highly limited odor production.
Our lineups cover sludge dewatering
up to 70 m³/hr of slurry.

Screw-press
(Multi-disk)

The screw press squeezes the slurry under pressure. Most of the water is squeezed out in the system, and the dewatered sludge cake is accordingly produced.
Most of the water is squeezed out in the system, and the dewatered sludge cake is accordingly produced.
Our lineups of multi-disk screw-presses are capable of dewatering slurry of even only 10 g/m³ or less.

Belt-press

The belt press has a set of mesh rotating belts.
The flocculated slurry is spread over the bottom belt and sandwiched between the one and the top belt. The belts are externally pressed with rollers, producing the filtrate and the dewatered sludge cake.
Our lineups cover sludge dewatering up to 21 m³/hr of slurry.

Flocculant-dissolvingSystem

The polymer flocculants need to be completely dissolved in dilution water prior to the feeding.
The polymer dissolving tanks designed and manufactured by ARK are ideal for the purpose.

POLYMER FLOCCULANTS

The polymer flocculants are in the forms of either powder or emulsion.
ARK’s lineups cover any kind of slurry to be dewatered.
Decantercentrifuge
Screw-press
Belt-press

Brochure about ARK’s products
(in Korean language)

ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

ARK


ARK is a worldwide leading company specialized for sludge dewatering technologies in water/wastewater/solid treatments.
In addition to being a manufacturer, we aim to support sustainable development in environmental protection efforts.
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years
History
ARK was founded in 2000 in South Korea and has been expanding the business over Asia to maximize customers’ satisfaction.
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unique technologies
Patents and certificates
Our high technologies convey the number of patents and certificates. To date, we have 6 international patents, 14 Korean patents, and 7 certificates.
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brands
Machines and chemicals
ARK has a total of 3 commercial brands for dewatering machines, including decanter centrifuges, screw-presses and belt-presses. To meet customers’ satisfaction, we have also released 2 lineups for the flocculant-dissolving systems and 2 lineups for the polymer flocculants in the Asian market, respectively.
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installations
Projects in Korea
Our systems have been installed in 300 water/wastewater/sludge treatment plants out of 600 in South Korea. Besides the successful outcomes, we are also receiving the highest reputation from the customers in Asia.

Auxiliary equipment


ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

FREETA-α

Flocculant-dissolving system for Powdered Polymer Flocculants
ARK Co., Ltd. – Specialists in Decanter Centrifuges, Screw Presses, Belt Presses

FREETA-β

Flocculant-dissolving system for Emulsion Polymer Flocculants

Powdered polymer flocculant, Damoa TM

DamoaTM Powdered polymer flocculant

Emulsion polymer floccualnt, HanaroTM

HanaroTM Emulsion polymer flocculant

Inquiries and requests for ARK

When you are considering a procurement of our products, contact us for a FREE trial run, our technical suggestions, and a preliminary quotation.
Overseas Quotation

NEWS & INFO about ARK (machine-translated)


  • Vietnam's Hidden Growing Pains, Environmental Concerns: Finding ‘Green Business’ Opportunities in a Time of Crisis

    Vietnam has been dubbed the ‘new dragon of Asia" due to its spectacular economic growth. But beneath the glittering growth are serious growing pains. Endless waste, polluted nature, and graying skies. The Vietnamese government has recognized the seriousness of the problem and has drawn the sword of the law, but with great change comes great opportunity. Right now, Vietnam's environmental problems are paradoxically [...].
    October 28, 2025
  • The Present and Future of Vietnam's Water Market: Where Are the Opportunities? (Latest Trends to 2025)

    Vietnam Water Market Insights Source: Water & Sewerage / Overseas Construction Association Hyo Eun Kim Vietnam's spectacular economic growth is no secret. However, there is another reality behind this spectacular growth that we need to pay attention to. That is the issue of water infrastructure. Despite having abundant water resources, dilapidated water facilities that cannot keep up with the pace of rapid urbanization and industrialization are a challenge that Vietnam must address, and at the same time, a barrier to new business [...]
    October 30, 2025
  • Exhibiting at Vietnam Water Week 2025

    My name is Seulgi Kim, Marketing Manager of ARK company. ARK is participating in the 3-day VIETNAM WATER WEEK exhibition. Vietnam Water Week 2025 is an international exhibition in the field of water supply, sewage, water purification, wastewater treatment and environmental sanitation, and is a well-established environmental exhibition in Vietnam. We will be showcasing our next-generation decanter centrifuge, which has been continuously improving its performance through ongoing research and development (R&D) projects to ensure outstanding efficiency, and will be attracting much attention [...]
    August 6, 2025
  • Attending Indonesia Water Treatment Expo 2025

    ARK Participation in Indonesia Water Treatment Expo! Hello, this is Seulgi Kim, ARK Korea Marketing Manager. ARK is participating in a water treatment fair in Indonesia. We would like to meet and greet with many representatives and companies related to sewage and wastewater treatment in Indonesia and explain our products. We are a product that has received the best rating as a ‘procurement superior product‘ certified by the Korean government, which is designed to meet the standards of advanced urban water treatment in Korea. We have entered the Indonesian water industry and [...]
    August 6, 2025
  • ARK ENVEX2025 Review

    Review of NVEX 2025, Valuable time to meet decanter centrifuge and screw press buyers Our booth, which was visited by many people, was closely watched not only by buyers but also by representatives of related organizations such as the water cluster and the Korea Environment Agency. As a company belonging to the water industry cluster, we also participated in the exhibition with pride. Our booth, which was visited by many people, was observed not only by buyers, but also by representatives of related organizations such as the water cluster and the Korea Environment Agency. Let me introduce the companies whose booths attracted attention among the various companies. CJK (CJK) Website [...]
    June 17, 2025
  • ENVEX2025 Exhibitor Information

    Meet the future of innovative decanter centrifuge technology We invite you to the exhibition! Dear water industry stakeholders, RK, a leading innovator in the water industry, invites you to a special exhibition at COEX L-13 from Wednesday, June 11th to Friday, June 13th. At this exhibition, we will be exhibiting our highly efficient decanter centrifuges that incorporate our unique technology. Our decanter centrifuges, which will contribute to solving environmental problems and increasing resource efficiency, are already used in many industrial [...]
    August 10, 2025
  • Centrifuge Redesign 3D Contest Announcement

    https://www.loud.kr/contest/view/170083 👆👆👆 View the crowdsourcing contest (designer account required)👆👆👆 👆👆👆 Greetings - Why are you starting a project? Hello, we are a dehydrator development company. For those who work in the water industry, dehydrator is a common term, but for those who don't, it may be unfamiliar. We are a Korean company with a factory in Vietnam that develops various types of dehydrators, which are devices for dehydrating sewage and wastewater in the water industry. Currently, as a carbon reduction project, we are combining decanter centrifuges with FRP in addition to the existing stainless steel [...].
    August 10, 2025
  • We wish you a happy Lunar New Year holiday.

    Hello, dear RK family! 🎊 On the occasion of the Chinese New Year 2025, we would like to extend our heartfelt greetings to you. We would like to express our deepest gratitude to everyone who has been with us in the past year. Just like the dehydrator we developed for water treatment, we hope this year will be a year where the unnecessary things in your life are cleanly dehydrated and only the pure and valuable things remain. 💧✨ Chinese New Year is a holiday for sharing precious time with family and friends, and with the busy [...]...
    August 10, 2025
  • Greetings from the year 2025

    Dear Customers, Greetings from all of us at ARK on the occasion of the year 2025. The year 2024 was a year in which the Korean water industry made a significant leap forward. Overseas exports through the Korea Environment Agency's water cluster reached KRW 109.3 billion, a remarkable achievement, and the overall growth rate of the industry remained stable at 2.91 TP3T. In particular, as long as digital transformation accelerated across the water industry and eco-friendly solutions were actively developed to respond to climate change, [...]
    August 10, 2025
  • Vietnam Water 2024, a review

    Hello, I'm Sohee Jeon, a public relations manager at ARK, and I'd like to share my experience of VIETWATER2024, which took place last week from the 6th to the 8th. Held at the Saigon Exhibition & Convention Center (SECC), it was a meaningful event that made us realize how deep and important the water industry is in Southeast Asia. Water is a food and energy resource that can sustain irreplaceable life energy called ‘WATERGY‘ in the future. On the other hand, after extreme weather events, we are affected by heavy rainfall flooding in an unpredictable short time. In this [...]
    August 10, 2025
  • VIETWATER2024 (Booth: K-24)

    Hello, this is RK. We are participating in the historic VIETWATER event. We will participate in VIETWATER 2024, Vietnam's largest water industry exhibition. VIETWATER is Vietnam's largest water industry exhibition, showcasing the latest solutions and products in water management, water treatment, and environmental technology. The annual event gathers companies and professionals from around the world to discuss sustainable water management, water recycling, wastewater treatment, and [...]
    August 10, 2025
  • “>

    AAK Feature Article <Electronic Newspaper

    [Going to the National Product Industry Cluster] [3] ’Overseas Performance Evaluation‘ Paves the Way for Chinese Companies to Export The National Product Industry Cluster is pioneering overseas sales for its resident SMEs through the ‘Overseas Performance Evaluation' program. It identifies companies that have excellent technology but have difficulties in developing overseas sales. It verifies product performance at the demonstration plant and provides the results to overseas customers to increase reliability and conduct 'third-party performance verification'. Water companies such as CJK and ARK were selected in 2022 and last year through open recruitment followed by expert evaluations, and [...]
    November 3, 2025

ARK’s offices, factories and international distributors

230-17, Eunhaengnamu-ro, Yanggam-myeon, Hwaseong-si, Gyeonggi-do, The Republic of Korea
+82 31-354-7223
Tầng 5, tòa N03T7, Khu Ngoại giao đoàn, Bắc Từ Liêm, Hà Nội 11918, Việt Nam
+84 977 675 754
68-70 Hoàng Diệu, Phường 13, Quận 4, Thành phố Hồ Chí Minh 72820, Việt Nam
+84 962 420 519
Lô FJ11 – 13, Khu công nghiệp Song Khê – Nội Hoàng, Xã Tiền Phong, Huyện Yên Dũng, Tỉnh Bắc Giang, Việt Nam
+84 977 675 754
24 19 Rajyindee, Soi 1 Rd., Tambon Hat Yai, Hat Yai District, Songkhla 90110 Thailand
+66 74 801 494

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