WATER TREATMENT METHOD

There is provided a method for treating water comprising passing water to be treated containing organic matters and ammonia nitrogen through a reaction tank containing a carrier for treatment under aerobic conditions, wherein a water content of the carrier is 50 % or more and 96 % or less; the carri...

Full description

Saved in:
Bibliographic Details
Main Authors HIRAI, Yusuke, HAYASHI, Yoshiyuki, YOSHIHARA, Mototsugu, UKAI, Yu, OSAWA, Takuya
Format Patent
LanguageEnglish
French
German
Published 05.05.2021
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Online AccessGet full text

Cover

More Information
Summary:There is provided a method for treating water comprising passing water to be treated containing organic matters and ammonia nitrogen through a reaction tank containing a carrier for treatment under aerobic conditions, wherein a water content of the carrier is 50 % or more and 96 % or less; the carrier has continuous pores with a pore size of 30 µm or less; an organic matter concentration in the water to be treated is 100 mg/L or less as a BODs, and an ammonia nitrogen concentration is 50 mg/L or less; a retention time of the water to be treated in the reaction tank is 2 hours or less; and the organic matters and the ammonia nitrogen in the water to be treated are treated in the same tank. Thus, excellent treated water with stable treating performance can be obtained when conducting biological treatment of water to be treated containing organic matters and ammonia, even with a low concentration of organic suspended solids in water to be treated.
Bibliography:Application Number: EP20190825693