ELIQUO WATER & ENERGY BV
About
ELIQUO Water & Energy BV, based in the Netherlands and part of the SKion Water group through the Eliquo Water Group, designs and installs multi-technology processes for energy-self-sufficient wastewater and sludge treatment with a strong emphasis on nutrient recovery. Originally founded as SH+E Nederland BV in 2012, the company has expanded through acquisitions including Malmberg Water (2024) and the GEAL automation specialist, growing its reach across Europe, Australia, and Southeast Asia. ELIQUO's technology portfolio centers on sludge treatment intensification: the ELOVAC and ELOVAC-P vacuum degassing systems extract residual biogas from digested sludge while improving dewatering performance by over 5 percentage points dry solids and reducing polymer and disposal costs by approximately 20%, with the -P variant adding integrated struvite precipitation for phosphate recovery. The LYSOTHERM thermal pressure hydrolysis system uses a pressureless thermal oil circuit rather than high-pressure steam, achieving up to 90% heat recovery and significantly boosting biogas yield. For sludge drying, the ELODRY low-temperature belt dryer enables energy-neutral drying to 90% dry solids. The Pearl technology produces Crystal Green ready-to-use fertilizer granules from sludge dewatering liquor via fluidized bed reactor crystallization. ELIQUO also provides PYREG pyrolysis systems converting dewatered sludge into biochar soil conditioner, ANAMMOX reject water treatment, FUNKE Senergie combined heat and power units for biogas utilization, Mecana pile cloth media filtration, and turn-key wastewater treatment plant construction in cooperation with sister company ELIQUO STULZ.
Key Products
Skid-mounted vacuum degassing system for digested sludge that extracts dissolved methane and CO2, improving dewatering results by 5+ percentage points dry solids and saving ~20% on polymer and disposal costs.
Enhanced version of ELOVAC that adds integrated struvite (phosphate) precipitation to prevent scaling in pipes while recovering phosphorus as a valuable product.
Sludge pre-treatment system using thermal disintegration via a pressureless thermal oil circuit; increases biogas production, achieves 90% heat recovery, and can be energy-positive when using CHP exhaust heat.
Energy-efficient low-temperature belt dryer for sewage sludge that enables energy-neutral sludge treatment and green electricity production; modular stainless steel design.
Patented fluidized bed reactor that recovers phosphorus from sludge dewatering liquor as Crystal Green high-quality ready-to-use fertilizer granules.
Pyrolysis technology for dewatered and pre-dried sludge or screenings that produces biochar soil conditioner, achieving total sludge minimization.
Anammox-based process for treating high-nitrogen liquor from anaerobic digestion and advanced sludge treatment, reducing nitrogen loading on the main treatment stream.
Combined heat and power (cogeneration) units that convert biogas from anaerobic digestion into electricity and heat for energy-self-sufficient plant operation.
Complete design and construction of wastewater treatment facilities in cooperation with sister company ELIQUO STULZ, covering primary through tertiary treatment and sludge management.
Tertiary cloth media filtration technology for effluent polishing, introduced to the Netherlands market by ELIQUO for advanced wastewater treatment.
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