Technologies

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Integrated Reservoir Operational Model

Technology Overview

Water resource management is the key to secure a sustainable future for the world. This technology relates to an integrated reservoir operation model which is useful for the efficient water resource management. It is usually difficult to operate the reservoir model using the prediction of inflow and water demand’s estimation with the low reliability of information.

An integrated reservoir operation model has been developed using the prediction of inflow to the reservoir with Artificial Neural Network (ANN), Artificial Intelligence (AI), and Deep Learning (DL), and estimation of water demand in the lower of reservoir. Municipal sewage systems typically do not fully cover urban sprawl rural areas. The wastewater management system has two aspects with purification and dilution of domestic wastewater. Water purification is mostly conducted microbiological activity where the density of microbiology is key factor. Recycled carbon fiber is applied as a microbiology carrier as the microbes can be easily attached and has sufficient specific surface area.

To attain water quality for purification system, wastewater inflow is controlled using dilution technology. Diluted water is supplied from excess paddy fields irrigation water because paddy fields decrease through sprawl situation by land use change. Surplus irrigation water is diluted with domestic wastewater and desirable water quality is controlled by a pump using AI and ICT technology.

Technology Features, Specifications and Advantages

Integrated reservoir operational model consists of inflow prediction and water demand estimation. Prediction of inflow to the reservoir is provided by the method using ANN where information is from the information of Earth’s precipitation. Water demand in the low river basin is estimated by the land use and the consumption rate on each land use type in real time. The unique value proposition of this technology is its ability to reflect the detail specification of dam into simulation, and able to apply for any spatial scale (10 - 100 million m3).

Carbon Fiber is already applied to water quality management on an experimental scale. Due to its cost, the applications are limited. Currently, recycled carbon fiber does not have a commercial purpose and is destined for landfill at the end of its product cycle. Recycled carbon fiber can be used to restore nitrogen and phosphorous content in soils to improve soil characteristics in line with United Nations’ Sustainable Development Goals (SDGs).

Potential Applications

This integrated reservoir operational model can be applied globally. The modelling results can be improved if the reservoirs’ specification in the target river basin is available. Dilution and purification by paddy field drainage system can be applied as distributed water purification system in rural area. Central sewage system is useful for water management in urban megacities but may be difficult to maintain in rural areas.

In rural areas, most land is used for agriculture applications with low population densities and scattered households. For this case, the distributed system may not be cost and energy effective. Dilution cost would be partially covered by farm management and purification cost would be partially restored as organic fertilizer and soil characteristics recovers some of the cost.

Customer Benefits

This technology will contribute to the efficient water resource management in the river basin. At same time, the cost of counter measure on reduction of water-related disaster could be save. Using the dilution and purification technology by paddy field drainage, cost of water purification can be reduced and biodiversity can be increased through the environment improvements.

OVERVIEW
Contact Person

Masashi Kiguchi

Organisation

UTokyo

Technology Category

  • Environment, Clean Air/Water
  • Filter Membrane/Absorption Material, Monitoring System & Sensor, System Integration

Technology Readiness Level

Keywords

water resource management, water purification