Wastewater Treatment

Wastewater Treatment

PDP have a strong track record of successfully commissioning and operating municipal and industrial wastewater treatment plants and effluent disposal systems for clients throughout NZ.  

We provide specialist engineering and scientific services in sewage treatment and disposal, and in development of sewerage infrastructure.  Current technology is applied to obtain the most effective solutions for both treatment and disposal.

Services that we provide:
  • Assessment of best practical treatment and disposal options
  • Environmental effects assessment
  • Detailed design of physical, chemical and biological treatment systems
  • Bench and pilot scale treatment studies to optimise performance
  • Construction management
  • Operational advice
  • Performance review and ‘troubleshooting’ advice
  • Land disposal assessment
  • Wetland treatment systems design
  • Provision of expert evidence for hearings
  • Design of sewerage systems and infrastructure
Network Infrastructure

We offer engineering services for the planning, management and development of wastewaer, water and stormwater networks and related infrastructure.  We have specialist skills in hydraulic and transient modelling, alternative network systems and trenchless technologies.

Services include:

  • Water, wastewater and stormwater master planning
  • Developing optimised capital works and renewal programmes
  • 3 Waters servicing assessments
  • Risk assessment
  • Hydraulic, hydrological and hydraulic transient modelling
  • Trenchless pipeline design
  • Pressure, vacuum and STEP/STEG wastewater system design and implementation
  • Preparation of Assessment of Environmental Effects and Resource Consent applications
  • Detailed design
  • Comprehensive GIS and CAD resources
  • Contract documentation
  • Contract Administration and construction monitoring
Land Treatment of Wastewater

Good environmental practice together with regulatory and Maori cultural pressures are increasingly forcing removal of wastewater discharges from rivers onto land where it can benefit crops and be treated by the soil. Schemes designed by Pattle Delamore Partners Ltd are proving land treatment is a viable alternative.

Services include:

  • Wastewater analysis
  • Receiving soil and groundwater analysis
  • Pre-treatment design
  • Detailed engineering design of irrigation system infrastructure
  • Assessment of disposal options
  • Environmental effects assessment and Resource Consents
  • Implementation of pilot schemes
  • Construction management
  • Monitoring system designs
Effluent Management

Management of effluent is a complex and demanding task where increasingly stringent environmental standards and production needs must be balanced.  Our wastewater specialists have practical experience and can help you with particular aspects of your project or deliver total project solutions.

Meat Industry Services include:

  • Resource consent and trade waste agreement procurement
  • Wastewater source and characterisation studies allowing clients to adopt reduction and reuse programmes reducing overall treatment and disposal costs
  • Treatment facility evaluation, troubleshooting and performance review
  • Bench and pilot scale treatment studies to optimise performance
  • Process, conceptual and detailed design of Anaerobic, SBR, BNR, DAF and UV treatment systems for high nutrient strength wastes
  • Construction management and commissioning
  • Liquid and solids waste disposal options development
  • Company wide environmental performance assessments, identifying key areas for prioritisation of environmental development

Industrial Effluent Management Services include:

  • Effluent flow and characterisation studies allowing clients to adopt reduction and reuse programmes reducing overall treatment and disposal costs
  • Bench and pilot scale treatability studies to optimise performance
  • On-site treatment plant troubleshooting and performance review
  • Treatment facility evaluation, providing direct insight into the sources of effluent and waste inputs
  • Conceptual and detailed design of treatment systems including construction management and commissioning
  • Client partnering to provide integrated waste management planning
Biosolids Management

As a byproduct of wastewater treatment processes, the on-going management of biosolids is necessary in maintaining wastewater treatment facilities.  Schemes designed by Pattle Delamore Partners utilise this potential waste as a nutrient rich resource for soil amendment through the land treatment and composting of biosoild.

Services include:

  • Biosolids analysis
  • Receiving soil analysis
  • Desludging of wastewater treatment ponds
  • Assessment of disposal options including irrigation to land
  • Mechanical and passive dewatering design
  • Detailed engineering design of irrigation or dewatering system infrastructure
  • Composting system designs
  • Environmental effects assessment and Resource Consents
  • Implementation of pilot schemes
  • Construction management
  • Monitoring system designs