The Global Water Treatment Sludge Drying Market was valued at US$ 577.27 Million in 2023 and is projected to reach US$ 960.27 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 7.2% during the forecast period (2023–2030). This robust growth trajectory reflects rising global demand for efficient sludge management solutions, tightening environmental regulations around wastewater disposal, and a broader industry shift toward sustainable and energy-efficient drying technologies.

As municipalities and industrial operators worldwide grapple with the mounting volumes of sludge generated from water and wastewater treatment processes, the spotlight is increasingly on the technology providers and solution leaders who are addressing one of the most complex challenges in environmental management. In this blog, we profile the Top 10 Companies in the Water Treatment Sludge Drying Industry—a mix of environmental engineering firms, equipment manufacturers, and process technology innovators shaping the future of sludge volume reduction, resource recovery, and sustainable disposal.

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😰 1. SUEZ

Headquarters: Paris, France
Key Offering: Thermal Drying Systems, Low Temperature Drying, Sludge Management Services

SUEZ is a globally recognized leader in water and waste management, offering comprehensive sludge drying and treatment solutions to municipal and industrial clients across more than 70 countries. The company’s end-to-end approach integrates sludge thickening, dewatering, drying, and final disposal or valorization into cohesive environmental service packages. SUEZ leverages both thermal and low-temperature drying technologies, enabling operators to significantly reduce sludge volume while recovering energy where possible.

Key Strengths:

• Broad global footprint with deep municipal and industrial client networks

• Integrated sludge-to-energy and sludge-to-agriculture valorization pathways

• Strong R&D investment in next-generation low-emission drying technologies

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Water Treatment Sludge Drying Market – View in Detailed Research Report

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9️⃣ 2. Benenv

Headquarters: Jiangsu, China
Key Offering: Low Temperature Belt Drying Systems, Sludge Dewatering Equipment

Benenv has established itself as one of China’s most prominent sludge drying equipment manufacturers, with a fast-growing international presence. The company specializes in low-temperature drying technology that uses heat pump systems to reduce sludge moisture content to below 10% while maintaining energy efficiency. Benenv’s solutions are widely deployed in municipal wastewater treatment plants and industrial facilities across Asia, and the company is increasingly expanding into European and Southeast Asian markets.

Key Strengths:

• Cost-effective low-temperature drying systems with high energy efficiency

• Strong domestic market position in China’s rapidly expanding wastewater sector

• Growing international project pipeline across Asia-Pacific and Europe

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8️⃣ 3. Huber Environmental Technology (Tai Cang) Co., Ltd.

Headquarters: Tai Cang, China (subsidiary of Huber SE, Germany)
Key Offering: Solar Drying Systems, Mechanical Sludge Treatment Equipment

Huber Environmental Technology is the Chinese arm of the well-regarded German engineering group Huber SE, bringing European precision engineering to the Asian sludge treatment market. The company offers a broad portfolio of sludge handling and drying equipment, with particular expertise in solar drying systems that harness renewable energy to achieve cost-effective moisture reduction. Huber’s products are designed for ease of integration with existing wastewater treatment infrastructure, making them especially popular among municipal plant operators undertaking capacity upgrades.

Key Strengths:

• Backed by Huber SE’s decades of European engineering expertise

• Specialization in solar drying—a low-operational-cost, sustainable approach

• Strong product compatibility with existing treatment plant infrastructure

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7️⃣ 4. Solwa

Headquarters: Vicenza, Italy
Key Offering: Solar Greenhouse Drying Systems, Thermal Drying Solutions

Solwa is an Italian environmental technology company that has carved out a distinctive niche in solar-powered sludge drying. Its flagship greenhouse solar drying systems use passive and active solar energy to dry sludge in enclosed structures, dramatically reducing operating costs compared to conventional thermal dryers. Solwa’s systems are particularly well suited to smaller and medium-sized wastewater treatment plants in Mediterranean and temperate climates, where solar irradiance levels make the technology economically attractive.

Key Strengths:

• Pioneer in solar greenhouse drying technology for municipal sludge

• Low operational costs due to renewable solar energy utilization

• Proven installations across Europe, Africa, and the Middle East

Download FREE Sample Report:
Water Treatment Sludge Drying Market – View in Detailed Research Report

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6️⃣ 5. SHINCCI

Headquarters: Guangdong, China
Key Offering: Heat Pump Low Temperature Drying Systems, Industrial Sludge Dryers

SHINCCI is a specialized sludge and organic waste drying equipment manufacturer that has built a strong reputation in China’s municipal and industrial wastewater sectors. The company’s heat pump-based low-temperature drying systems are designed for high energy efficiency, achieving final moisture contents below 10% at significantly lower energy consumption than conventional high-temperature thermal dryers. SHINCCI serves a wide range of end markets, including municipal sewage treatment, food processing, and industrial wastewater management.

Key Strengths:

• Proprietary heat pump drying technology with proven energy savings

• Versatile systems adaptable to municipal, industrial, and food waste sludge

• Established track record across hundreds of Chinese municipal projects

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5️⃣ 6. KENKI DRYER

Headquarters: Osaka, Japan
Key Offering: Screw Press Dryers, Continuous Sludge Drying Systems

KENKI DRYER is a Japanese equipment manufacturer that has developed an innovative self-cleaning screw press drying technology specifically tailored for difficult-to-handle wet sludges. The company’s continuous drying systems are designed to process sludge with high moisture content and sticky consistency without clogging—a longstanding challenge in the industry. KENKI’s technology is particularly valued in Japan and across the Asia-Pacific region, where space constraints and the need for compact, reliable systems are strong market drivers.

Key Strengths:

• Unique self-cleaning screw dryer design that handles sticky, high-moisture sludges

• Compact system footprint well-suited for space-constrained installations

• Continuous operation capability for reliable, high-throughput processing

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4️⃣ 7. WATROPUR

Headquarters: Belgium
Key Offering: Low Temperature Sludge Drying Systems, Modular Drying Units

WATROPUR is a European specialist in low-temperature sludge drying technology, offering modular and scalable systems that can be tailored to a wide range of plant capacities. The company’s systems operate at low temperatures using heat pump or waste heat sources, making them energy-efficient alternatives to conventional high-temperature dryers. WATROPUR’s modular design philosophy enables clients to expand drying capacity incrementally, which is a significant advantage for municipalities planning phased infrastructure upgrades.

Key Strengths:

• Modular system architecture enabling flexible, phased capacity expansion

• Low-temperature operation compatible with waste heat recovery integration

• Strong presence in European municipal wastewater treatment market

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3️⃣ 8. Tsukishima Kikai

Headquarters: Tokyo, Japan
Key Offering: Thermal Drying Systems, Mechanical Dewatering and Drying Equipment

Tsukishima Kikai, commonly known as TKK, is one of Japan’s most established industrial machinery manufacturers with deep expertise in sludge treatment and drying. The company offers a comprehensive range of mechanical dewatering and thermal drying equipment, serving both municipal wastewater treatment plants and a broad array of industrial sectors. TKK’s long engineering heritage and extensive installed base across Japan and Asia make it one of the most trusted names in the sludge processing equipment space, particularly for large-scale municipal and industrial applications requiring robust, long-life systems.

Key Strengths:

• Decades of experience in mechanical and thermal sludge processing systems

• Comprehensive product portfolio covering dewatering through to final drying

• Strong references across Japan’s demanding municipal infrastructure market

Download FREE Sample Report:
Water Treatment Sludge Drying Market – View in Detailed Research Report

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2️⃣ 9. KILBURN

Headquarters: Mumbai, India
Key Offering: Rotary Dryers, Thermal Sludge Drying Systems, Industrial Drying Equipment

KILBURN Engineering is one of India’s leading industrial drying equipment manufacturers, with a strong track record in thermal drying solutions for sludge, minerals, chemicals, and agricultural products. The company’s rotary drum dryers and fluidized bed dryers are deployed across a wide range of industrial sludge drying applications in India and internationally. As India’s wastewater treatment infrastructure continues to expand in response to urbanization and tightening environmental regulations, KILBURN is well-positioned to serve the growing domestic municipal sludge drying market alongside its established industrial client base.

Key Strengths:

• Established industrial drying heritage with adaptable sludge treatment solutions

• Strong domestic position in India’s rapidly developing wastewater sector

• Broad technology portfolio covering rotary, fluidized bed, and flash drying systems

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1️⃣ 10. Dorset Group BV

Headquarters: Aalten, Netherlands
Key Offering: Low Temperature Belt Dryers, Manure and Sludge Drying Systems

Dorset Group BV is a Dutch agricultural and environmental technology company that has gained international recognition for its innovative low-temperature belt drying systems. Originally developed for manure and organic waste applications, Dorset’s technology has found strong applicability in municipal and industrial sludge drying, where gentle low-temperature processing preserves the agronomic value of dried sludge for land application. The company’s systems are widely deployed across the Netherlands and Belgium, and Dorset has been expanding its market reach into Germany, France, and other European markets in recent years.

Key Strengths:

• Innovative belt drying technology with proven performance in organic sludge applications

• Preservation of nutrient value in dried output, supporting agricultural land reuse

• Growing European customer base with strong references in the Netherlands and Belgium

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Water Treatment Sludge Drying Market – View in Detailed Research Report

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🌍 Outlook: The Future of Water Treatment Sludge Drying Is Greener and More Efficient

The water treatment sludge drying market is undergoing a meaningful transformation. While thermal drying remains the dominant technology by volume processed, the industry is investing significantly in low-temperature alternatives, solar-powered systems, and heat recovery-integrated solutions that dramatically reduce the energy intensity and carbon footprint of sludge management operations.

📈 Key Trends Shaping the Market:

• Rapid adoption of low-temperature and heat pump drying technologies across Europe and Asia-Pacific

• Regulatory pressure driving stricter sludge disposal standards and encouraging valorization pathways such as agricultural land application and energy recovery

• Growing focus on circular economy principles, with sludge increasingly viewed as a resource rather than a waste stream

• Expansion of municipal wastewater treatment infrastructure in China, India, and Southeast Asia creating substantial new demand for sludge drying capacity

• Integration of digitalization and process automation tools to optimize dryer performance and reduce operational costs

Get Full Report Here:
Water Treatment Sludge Drying Market – View in Detailed Research Report

The companies profiled above are not only leading the water treatment sludge drying industry—they’re spearheading the sustainable transformation of how the world manages one of its most challenging environmental byproducts. As regulatory frameworks tighten and the imperative for resource recovery grows stronger, these industry leaders are setting the standard for efficiency, innovation, and environmental responsibility in sludge management.