Landfill Products
Landfill Borehole Lining Systems
Stuart Well Services is able to supply a range of well-linings for site investigations, dewatering wells, leachate abstraction wells, water abstraction wells, soakaways and gas abstraction wells.
All materials are manufactured to meet the requirements of: ISO9001:1994 by Jain Irrigation S Limited.
Pipes are male-female threaded in lengths of 1 and 3 metres.
- Manufactured from high density Polyethylene (HDPE)
- High temperature resistance
- Vicat softening point 125º ISO R 306 (B)
- Resistant to aggressive chemical found in landfill sites
- High strength, tough and durable
- Threaded without reducing wall thickness giving maximum strength of joint with rapid assembly - flush joints also available
- Metric sizes to suit all horizontal pipework
- Manufactured to DIN 8074
- Landfill site proven for over 10 years
| Outside Diameter (mm) | Inside Diameter (mm) | Weight (kg/m) |
|---|---|---|
| 40 | 28 | 0.60 |
| 63 | 51.4 | 1.05 |
| 90 | 73.6 | 2.12 |
| 110 | 97.4 | 2.08 |
| 160 | 141.8 | 4.35 |
Other dimensions and wall thickness are available on request up to 630mm diameter.
Slot sizes 1mm standard, 0.75mm available on request.
Methane Gas Venting Stacks
Methane gas venting is actively undertaken by the installation of gas venting stacks which will rotate in wind speeds as low as three kilometres per hour
Ventilation rates in excess of 1500 litres per minute are typically achieved with average wind speed of 16 kilometres per hour
The rotating cowl is available in two sizes, one suitable for pipes up to 150mm diameter (model no. RC150) and for pipes up to 200mm (model no. RC200 - see table below)
Methane gas venting stacks datasheet
| Cowl Number | RC150 | RC200 |
|---|---|---|
| Pipe Size (mm) | 70 - 150 | 150 - 200 |
| Venting Capacity (l.p.m, max) | 1500 | 2800 |
| Sample Port (mm) | 25 | 25 |
| Sleeve Length (mm) | 3500 | 3500 |
| Cage Size (HWD mm) | 360 x 380 x 380 | 360 x 380 x 380 |
| Lugs (mm) | 400 | 400 |
Flux Boxes
The Passive Flux Box is designed to quantify total methane emissions across a surveyed area, providing an effective solution for landfill and 
environmental monitoring applications. By measuring methane flux through a site cap, surveys can identify areas where gas emissions exceed regulatory limits, helping operators target remedial actions and maintain compliance with Integrated Pollution Prevention and Control (IPPC) requirements.
The system consists of a passive enclosure with a known internal volume and two ports mounted on the upper surface. The inlet port allows pressure equalisation, while the outlet port enables gas sampling. This design allows gas samples to be collected without disturbing the internal pressure of the flux box, ensuring accurate and reliable measurements.
Methane concentrations within the enclosure are analysed using a compatible gas analyser (not supplied).
Manufactured from white polyethylene, as recommended by the Environment Agency, the Passive Flux Box minimises thermal differences between the inside and outside of the enclosure during warm weather conditions. This helps improve measurement consistency and accuracy.
Lightweight and durable, each flux box weighs less than 10 kg, making it easy for site personnel to transport and deploy multiple units across a survey area.