Добірка наукової літератури з теми "Mekoroth Water Company"

Every network of supply waterlines experiences thousands of yearly bursts, breaks, leakages, and other failures. These failures waste a great amount of resources, as not only the waterlines need to be repaired, but also water is wasted and the distribution service is interrupted. For that reason, many water facilities employ proactive maintenance strategies in their networks, where they replace likely-to-fail pipes in advance to prevent the failures. In this paper, we aim to establish a reliable prediction model that can accurately predict faults in waterlines prior to their occurrence. We propose a specific segmentation method for long transmission mains, as well as three data-driven models and one rule-based prediction model. We evaluate a real world waterline network used in Israel, operated by Mekorot company, using three common metrics. The results show that the data-driven algorithms outperform the rule-based model by at least 5% in each of the metrics. Additionally, their prediction becomes more accurate as they are trained with more data, but enhancing these data with geographically related features does not improve the accuracy further.

The two largest wastewater reclamation systems in Israel are monitored for both quality and operational parameters by a group of experts from the Environmental and Water Resources Engineering Center at the Technion in cooperation with Mekorot - Water Company for Israel. The Greater Haifa wastewater reclamation project is monitored now for the eighth year successively and the Greater Tel Aviv reclamation complex for the second year. Our experience indicates that the establishment of a comprehensive monitoring program for such systems is essential for the successful operation of the reclamation projects. However, periodic fundamental reviews of the monitoring program are necessary in order to improve and update its components. The basic trend of the two monitoring programs was to reduce to a great extent the number of both sampling points and parameters tested, while increasing specific research studies concerning particular problems that arose during the regular monitoring procedure.

Disposal of RO concentrates emanating from inland brackish water desalination plants presents a difficult environmental problem. The solution adopted by Mekorot - the National Water Company of Israel - is to construct a 30 km waste disposal pipeline for collecting concentrates emanating from several RO desalination plants and discharging them into the sea. The discharged concentrates are highly supersaturated with respect to CaCO3. Scale precipitation during concentrate flow through the RO module is inhibited by the presence of anti-scalants. The retention time of the concentrate solution in the discharge pipe will exceed 100 hours. This raises the issue of the risk of scale precipitation in the discharge pipe that could impair its proper functioning. The aim of the present study was to provide data for guiding the design and operation of the disposal pipeline. The extent of the induction period prior to the onset of precipitation was measured in a pilot plant simulating flow of concentrate solutions dosed with anti-scalants. The parameters investigated were the scaling potential, the anti-scalant concentration and the presence of a mixture of several anti-scalants. The results of this study provide threshold scaling limits under various conditions.