Water Treatment

Arthian delivers tailored water treatment solutions for industrial, infrastructure and environmental projects. From compliance to reuse, we help clients manage water sustainably and efficiently.

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Water Treatment Services

At Arthian, we provide expert water treatment solutions that help clients manage water resources responsibly, meet regulatory standards, and support long-term environmental and operational goals. Our multidisciplinary team of engineers, environmental consultants and sustainability specialists design and deliver bespoke systems for water purification, reuse, and discharge across a wide range of sectors.

Whether you’re treating process water, managing surface runoff, or exploring closed-loop reuse systems, we offer end-to-end support to ensure your water strategy is efficient, compliant, and future-ready.

What Is Water Treatment?

Water treatment involves the physical, chemical, and biological processes used to improve water quality for a specific end use-whether for industrial processes, environmental discharge, or reuse within a facility. It includes the treatment of:

Raw water (e.g. from rivers, boreholes or reservoirs)
Process water used in manufacturing or cooling
Surface water and stormwater runoff
Treated effluent for reuse or safe discharge

Effective water treatment is essential for:

Regulatory compliance with water quality and discharge standards
Protecting ecosystems and public health
Reducing water consumption through recycling and reuse
Improving operational efficiency and reducing costs

Why Water Treatment Matters

Water is a critical resource—and one under increasing pressure from climate change, population growth, and industrial demand. For businesses and infrastructure operators, managing water sustainably is both a regulatory obligation and a strategic opportunity. At Arthian, we help clients achieve compliance with UK and EU water quality regulations, reduce reliance on mains water through on-site treatment and reuse, minimise environmental impact by improving discharge quality, and optimise water use across the project lifecycle. Our solutions are tailored to your site, sector, and sustainability goals—whether you’re designing a new facility or upgrading an existing system.

Water quality assessment and sampling

Feasibility studies and options appraisal

System design and engineering

Water reuse and recycling solutions

Regulatory support and permitting

Construction and commissioning oversight

Ongoing monitoring and optimisation

Water quality assessment and sampling

We carry out comprehensive analysis of raw, process, and discharge water to determine treatment needs and regulatory requirements. This includes:

Sampling across key points in your system to capture representative water profiles
Testing for physical, chemical, and biological parameters such as pH, turbidity, COD, BOD, metals, and nutrients
Identifying pollutants and contaminants that may affect compliance or treatment performance
Supporting discharge consent applications and environmental reporting
Informing process design, technology selection, and operational strategies

Feasibility studies and options appraisal

We evaluate treatment technologies and strategies to identify the most effective and sustainable solutions for your site. This includes:

Reviewing effluent characteristics and site-specific constraints
Assessing technical feasibility and regulatory alignment
Comparing treatment options using cost-benefit analysis
Evaluating sustainability performance, including energy use and resource recovery potential
Supporting investment decisions with clear, evidence-based recommendations

System design and engineering

We design bespoke treatment systems tailored to your effluent profile, site constraints, and performance goals. This includes:

Filtration, sedimentation, chemical dosing, membrane technologies, and biological processes
Integrating proven and innovative technologies for robust, scalable solutions
Aligning system design with discharge limits, resource recovery, and sustainability targets
Supporting layout planning, equipment selection, and automation strategies
Ensuring systems are operable, maintainable, and optimised for long-term performance

Water reuse and recycling solutions

We develop closed-loop systems that treat and reuse water on-site, helping clients reduce consumption and discharge volumes. This includes:

Designing tailored reuse strategies based on water quality and process needs
Integrating treatment technologies such as filtration, disinfection, and membrane systems
Reducing reliance on mains water and improving operational resilience
Supporting circular economy goals through resource-efficient water management
Enhancing compliance with discharge limits and sustainability targets

Regulatory support and permitting

We provide expert guidance to help clients navigate water-related regulations and secure the necessary approvals. This includes:

Advising on discharge consents and abstraction licences
Interpreting requirements under the Water Framework Directive
Ensuring alignment with regulatory body standards and expectations
Supporting documentation, submissions, and regulator engagement
Helping maintain compliance throughout the project lifecycle

Construction and commissioning oversight

We provide expert support during installation, commissioning, and optimisation to ensure treatment systems perform as designed and meet compliance requirements. This includes:

Overseeing construction activities and coordinating with contractors and suppliers
Supporting commissioning protocols, functional testing, and system start-up
Verifying performance against design specifications and regulatory standards
Troubleshooting operational issues and refining system settings
Ensuring smooth handover to operations teams with clear documentation and training

Ongoing monitoring and optimisation

We provide post-installation support to ensure your treatment systems continue to perform efficiently and remain compliant over time. This includes:

Tracking system performance through regular monitoring and data analysis
Identifying opportunities to reduce energy use, chemical consumption, and operating costs
Adjusting operational parameters in response to changing water quality or process demands
Supporting compliance with evolving regulatory standards and discharge limits
Advising on system upgrades, automation, and predictive maintenance strategies

Water quality assessment and sampling

We carry out comprehensive analysis of raw, process, and discharge water to determine treatment needs and regulatory requirements. This includes:

Sampling across key points in your system to capture representative water profiles
Testing for physical, chemical, and biological parameters such as pH, turbidity, COD, BOD, metals, and nutrients
Identifying pollutants and contaminants that may affect compliance or treatment performance
Supporting discharge consent applications and environmental reporting
Informing process design, technology selection, and operational strategies

Feasibility studies and options appraisal

We evaluate treatment technologies and strategies to identify the most effective and sustainable solutions for your site. This includes:

Reviewing effluent characteristics and site-specific constraints
Assessing technical feasibility and regulatory alignment
Comparing treatment options using cost-benefit analysis
Evaluating sustainability performance, including energy use and resource recovery potential
Supporting investment decisions with clear, evidence-based recommendations

System design and engineering

We design bespoke treatment systems tailored to your effluent profile, site constraints, and performance goals. This includes:

Filtration, sedimentation, chemical dosing, membrane technologies, and biological processes
Integrating proven and innovative technologies for robust, scalable solutions
Aligning system design with discharge limits, resource recovery, and sustainability targets
Supporting layout planning, equipment selection, and automation strategies
Ensuring systems are operable, maintainable, and optimised for long-term performance

Water reuse and recycling solutions

We develop closed-loop systems that treat and reuse water on-site, helping clients reduce consumption and discharge volumes. This includes:

Designing tailored reuse strategies based on water quality and process needs
Integrating treatment technologies such as filtration, disinfection, and membrane systems
Reducing reliance on mains water and improving operational resilience
Supporting circular economy goals through resource-efficient water management
Enhancing compliance with discharge limits and sustainability targets

Regulatory support and permitting

We provide expert guidance to help clients navigate water-related regulations and secure the necessary approvals. This includes:

Advising on discharge consents and abstraction licences
Interpreting requirements under the Water Framework Directive
Ensuring alignment with regulatory body standards and expectations
Supporting documentation, submissions, and regulator engagement
Helping maintain compliance throughout the project lifecycle

Construction and commissioning oversight

We provide expert support during installation, commissioning, and optimisation to ensure treatment systems perform as designed and meet compliance requirements. This includes:

Overseeing construction activities and coordinating with contractors and suppliers
Supporting commissioning protocols, functional testing, and system start-up
Verifying performance against design specifications and regulatory standards
Troubleshooting operational issues and refining system settings
Ensuring smooth handover to operations teams with clear documentation and training

Ongoing monitoring and optimisation

We provide post-installation support to ensure your treatment systems continue to perform efficiently and remain compliant over time. This includes:

Tracking system performance through regular monitoring and data analysis
Identifying opportunities to reduce energy use, chemical consumption, and operating costs
Adjusting operational parameters in response to changing water quality or process demands
Supporting compliance with evolving regulatory standards and discharge limits
Advising on system upgrades, automation, and predictive maintenance strategies

Why Choose Arthian's Water Management Team?

Engineering services delivered by specialists:

Integration

Fully integrated with geotechnical, hydrological, and ecological disciplines.

Our Experience

National experience with regional insight and regulatory familiarity.

Our Understanding

Deep understanding of planning, infrastructure, and environmental interfaces.

Results Driven

Commitment to technical rigour, clear communication, and long-term outcomes.

Frequently Asked Questions

What types of water do you treat?

We treat raw water, process water, surface water, and treated effluent. Our solutions are tailored to your specific water source and end use.

Can you help us reuse water on-site?

Yes. We specialise in designing water recycling and reuse systems that reduce reliance on mains supply and lower discharge volumes.

Do you provide support with discharge consents?

Absolutely. We help clients navigate the permitting process, liaise with the Environment Agency, and ensure compliance with discharge standards.

What sectors do you work in?

We support clients across energy, manufacturing, infrastructure, construction, and the built environment.

Is your service available across the UK?

Yes. Arthian operates nationwide, supporting clients across England, Scotland, Wales and Northern Ireland.

Get in Touch

We’d love to hear from you – whether you have a question, a project in mind, want to explore job opportunities, or just want to say hello.

Services

Services

Environment

Engineering

Planning

Safety

Net Zero & Decarbonisation

Sustainability Consulting

Water Treatment

Water Treatment Services

What Is Water Treatment?

Why Water Treatment Matters

Water quality assessment and sampling

Feasibility studies and options appraisal

System design and engineering

Water reuse and recycling solutions

Regulatory support and permitting

Construction and commissioning oversight

Ongoing monitoring and optimisation

Water quality assessment and sampling

Feasibility studies and options appraisal

System design and engineering

Water reuse and recycling solutions

Regulatory support and permitting

Construction and commissioning oversight

Ongoing monitoring and optimisation

Why Choose Arthian's Water Management Team?

Integration

Our Experience

Our Understanding

Results Driven

Frequently Asked Questions

What types of water do you treat?

Can you help us reuse water on-site?

Do you provide support with discharge consents?

What sectors do you work in?

Is your service available across the UK?

Get in Touch