- IWA Publishing
- Editorial: New techniques and tools for improving efficiency in ...
Quantification of leakage in batch biogas assays
Avoiding leaks is essential for accurate measurement of biogas production by batch assays. Here we present a simple method for detecting leaks and correcting results, based on the change in bottle mass during incubation. Three experiments were carried out using pure chemicals, wastewater sludge, and other complex substrates to test and demonstrate the method, and leaks were detected in all three. The frequency and magnitude of leakage was related to headspace pressure and the number of times bottle septa had been...
Leakage and failures of water distribution mains in the city of Al Ain, UAE
A large amount of water is lost from the Al Ain water distribution system due to pipeline breakages that may have links to socio-economic and environmental impacts. The numbers of line failures in the region are too high. This study is an overview of the types and failure factors affecting water lines. Methods of repair and rehabilitation are described. Three case study locations were investigated. The incidence of water line breakages is relatively higher in the summer. Pipelines in the study region are comparativ...
Germany/Eislingen - Permanent leakage monitoring is the fastest way to reduce leakage - Case study
The town of Eislingen in Southern Germany has practiced Active Leakage Control for many years with a team of two equipped with a ground microphone and correlator who drive around in a van searching for leaks. As many of the pipes are one hundred years they had a good success rate often finding leaks. With two hundred and forty kilometers in the network, there is a large area for one team to cover and the leak detection process is expensive, laborious and lacking strategy.The engineers at Eislingen have been...
Permanent Monitoring Systems for Seabed Leakage Detection
Seabed leaksWhere do they come from? Natural vents: Faults, Pockmarks, and Chimneys Melting hydrates Shallow gas layers Long term leakage along well casings (cracked cement) Injection: fault re-activation/fracturin Lost well control nd failing barriers The mysterious pockmarks at the Troll fieldFootprints from melted hydrate lumps (after the last glacial period)Characteristics of Seabed Gas LeaksMonitoring solution for Permanent seabed leakage detection in the vicinity of production facilities:Traces...
Electronic Water Meter For Leakage Repair - Case Study
Every year, EMS (Energy Management System) produces and markets smart electronic water meters (domestic/ bulk), wireless transmission data logger (GSM/ GPRS), and advanced AMR (Automatic Metering Reading) systems. Unlike traditional mechanical water meter, the magnet-free electronic smart water meter with class C (CNS 14866) metrological performance can maintain 12 years battery lifespan. With a tamper-proof design, it also has leakage detection function, flow directions, monthly water consumption log, and MNF...