Typhoon No. 19 Nagano's sewage treatment facility Substantial flooding significantly reduces processing capacity October 17, 20:43
Due to the heavy rain of Typhoon No. 19, some sewage treatment facilities were flooded in Nagano Prefecture, making it impossible to use equipment such as pumps to pump up the sewage, greatly reducing the sewage treatment capacity.
Inundation damage was caused by “Clean Pier Chikuma” in Nagano City and “Saku City Sewerage Management Center” in Saku City.
In addition to the northeastern part of Nagano City, “Clean Pier Chikuma” includes 143,000 people in Suzaka City, Obuse Town, and Takayama Village, and the “Saku City Sewerage Management Center” provides sewage for approximately 60,000 people in the city. Processing.
According to the prefecture, the sewage treatment has not caught up in some areas due to this effect, and the sewage that has accumulated in the sewage pipes overflows, so it is said that they are responding using a pump car.
In the damaged “Cleanpia Chikuma”, a temporary pump is installed to restore the ability to pump up the sewage, and the sewage is discharged into the river through a simple process of disinfecting with chlorine.
On the 18th, the number of temporary pumps will be increased to about 20, and if the work is completed, it is expected that it will be able to treat the same amount of sewage as usual, although it is a simple treatment . In Saku City, we are continuing to restore facilities.
However, because both facilities may not be able to catch up if the amount of water flowing into the sewage pipe increases significantly, the prefecture will continue to use toilets for residents in areas where the two facilities are treating sewage. We are calling for water saving when using such as.
Affecting villages that were not flooded
The damage to the sewage treatment facility in Nagano City has affected the lives of residents in Takayama Village, which is located about 9 km away from Nagano City.
Takayama village with a population of about 7000 was not damaged by typhoon No.19. However, the treatment of sewage in the Takai area, where more than 60% of the villagers live, is carried out by Cleanpia Chikuma in Nagano City.
In response to the drastic decline in the sewage treatment capacity of Cleanpia Chikuma this time, the village has been calling on residents in the Takai area to cooperate in water conservation in order to avoid sewage as much as possible.
In addition, 28 temporary toilets have been installed in four locations, including village offices and junior high schools, to encourage residents to use them.
On the 17th, 10 temporary toilets will be installed at Takai Elementary School, and there will be an additional temporary toilet in the village.
“It is a village upstream of Nagano City, so I wanted to reduce the burden on the treatment facilities and installed temporary toilets. Would like to ask for cooperation. "
A 72-year-old man living in this area said, “I can't stand the toilet, but I have reduced the number of baths with hot water. People in the neighborhood where the Chikuma River broke down are feeling very hard. I want to be able to cooperate. "