Stop pouring profit down the drain.
Industrial water isn’t just a compliance issue—it’s a massive operational cost. We help sites across New Zealand and Australia cut trade waste bills, recover lost product, and optimise wastewater treatment.
Turn trade waste compliance into cost savings.
Trade waste tariffs are rising rapidly across the region. Local water authorities charge heavily based on both the volume of water you discharge and the pollutant load within it. In fact, a single food processing or manufacturing plant can easily generate the equivalent pollutant load of a small town.
Most businesses treat these effluent costs as a "grudge purchase" or a fixed cost of doing business. At DETA, our water and wastewater engineering consultants flip this logic. We don't just look at the expensive treatment plant at the end of the pipe. We look upstream into your factory to stop product and water from hitting the drain in the first place. By taking a holistic view of your water mass balance, we help you:
Reduce monthly OpEx
Slash your trade waste and effluent disposal bills.
Recover valuable yield
Capture lost product (like dairy, meat, or chemicals) before it becomes costly waste.
Avoid massive CapEx
Delay or completely avoid the need to build larger wastewater treatment plants by reducing the volume at the source.
Safeguard compliance
Meet local council and EPA regulations without blowing your operational budget.
Our Water & Wastewater Engineering Services
Site Water Audits & Quick-Win Assessments
Perfect for sites getting hit with high monthly council fees but unsure exactly where the water is going. For organisations wanting immediate ROI, we provide a high-level review of your site’s water use and wastewater generation. We trace the pipes, identify the bottlenecks, and outline practical steps for immediate improvement.
- Process flow and water mapping.
- Leak detection and washdown efficiency analysis.
- Benchmarking against industrial standards.
- Quick-win recommendations for reducing consumption and trade waste costs.
Detailed Wastewater Engineering & Yield Recovery
For complex manufacturing, dairy, and food processing sites facing strict discharge limits or water scarcity. If your effluent load is too high, the answer isn't always a bigger treatment plant—it's usually better process control. We conduct deep-dive engineering studies to find exactly where your product is being lost to the drain and how to fix it.
- Mass balance and product yield recovery analysis.
- Treatment plant debottlenecking and mitigation strategies.
- Design of water recycling, circular economy, and reuse systems.
- Bioenergy and waste-to-value feasibility studies (e.g., anaerobic digestion).
Project Delivery & Ongoing Optimisation
Ensuring your engineering upgrades are installed safely and perform as promised. Beyond assessments, DETA provides the ongoing technical project management to ensure your water improvements are implemented, commissioned, and sustained over time.
- Equipment procurement and project management.
- Automation and control integration for continuous monitoring.
- Support for long-term trade waste consent and environmental compliance.
Why Operations Managers trust DETA
We look upstream first
We know that saving product equals saving money. We prioritise yield recovery over simply building bigger wastewater plants.
"Boots on the ground" engineers
We don't just sit in the office running models. We are on the factory floor, tracing pipes and understanding the reality of your operators' daily challenges.
Measurable financial impact
We track our success by your P&L. From Auckland to Melbourne, we deliver measurable water savings and improved compliance outcomes.
Unbiased, Vendor-Agnostic Advice
We sell engineering expertise, not equipment. We recommend the best technical solution for your site—regardless of brand or supplier.
ANZCO enjoyed collaborating alongside the DETA team who were instrumental in ensuring the success of the project overall. We'll use this experience to generate future success within our business, ensuring the work on our sustainability and decarbonisation journey continues.
Water & Wastewater Reduction FAQs
What is a trade waste audit and what does it involve?
A trade waste audit is an engineering assessment of all water entering and leaving your industrial site. It measures flow rates, samples effluent quality (BOD, COD, suspended solids), and identifies opportunities to reduce council trade waste tariffs and fresh water consumption.
How are trade waste and effluent charges calculated?
Council trade waste tariffs are calculated based on total discharge volume combined with the concentration of contaminants like suspended solids, organic load (BOD/COD), and chemical compounds. High contaminant levels trigger expensive surcharge penalties on your local council utility bill.
What is yield recovery and how does it reduce wastewater costs?
Yield recovery is the engineering practice of capturing lost raw materials (like milk fat, protein, or beverage product) before they wash down the drain into wastewater systems. Capturing product upstream increases saleable yield while simultaneously lowering downstream trade waste treatment costs.
Do industrial sites need EPA or council approval for wastewater discharge?
Yes, all commercial and industrial facilities discharging trade waste into public sewers or natural waterways require formal trade waste consents or EPA permits. Approvals dictate maximum daily volume limits, peak flow rates, and strict chemical discharge thresholds.
What is the difference between water reduction and wastewater treatment?
Water reduction focuses on optimizing in-plant processes to use less fresh water initially, whereas wastewater treatment involves processing contaminated effluent at the end of the pipe before discharge. Reducing water use upstream drastically lowers the required capital size of end-of-pipe treatment plants.
Ready to cut your water and trade waste costs?
Don't let water scarcity or compliance regulations stall your production. Talk to our engineering team today about building a more resilient, cost-effective site.
