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EcoFlow was founded in May 2017 by Bruce Wang. [4] They started with the launch of the RIVER mobile power station. [5] By 2019, the company expanded to Tokyo, Japan and introduced the DELTA 1300 with faster charging. [6] The following year, in 2020, the RIVER series followed, offering smart energy management features.
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River engineering, a branch of civil engineering, deals with the process of planned human intervention to improve and restore rivers for human and environmental needs. With modern technologies, data collection and modelling, navigation can be improved, dredging reduced and new habitats can be created.
The flushing flow method involves partially or completely emptying the reservoir behind a dam to erode the sediment stored on the bottom and transport it downstream. [7] [6] Flushing flows aim to restore natural water and sediment fluxes in the river downstream of the dam, however the flushing flow method is less costly compared to removing dams or constructing bypass tunnels.
[2] Beginning in the late 20th century, the river engineering discipline has been more focused on repairing hydromodified degradations and accounting for potential systematic response to planned alterations by considering fluvial geomorphology. Fluvial geomorphology is the study of how rivers change their form over time.
The dredging project is the most aggressive environmental effort ever proposed to clean up a river, and will cost GE about $460,000,000. General Electric took the position that dredging the river would actually stir up PCBs. [32] In 2002, EPA ordered GE to clean up a 40-mile (64 km) stretch of the Hudson River it had contaminated. [33]
A public health crisis in and around the city of Jackson, Mississippi, began in late August 2022 after the Pearl River flooded due to severe storms in the state. [1] The flooding caused the O. B. Curtis Water Treatment Plant, the city's largest water treatment facility, which was already running on backup pumps due to failures the month prior, to stop the treatment of drinking water indefinitely.