It got increased markedly to twenty two trillion won when the government made a public statement about the Master plan of Restoration of four major rivers .
In the government's investment plan, the total cost is twenty two trillions. But except of the total cost of this state undertaking, twenty two trillions, two thousand billions, it will be vast.
First of all, if water improvement bu
What is Botulism?
Serious paralytic illness, caused by a nerve
toxin that is produced by the bacterium
Clostridium botulinum.
Three main kinds of botulism.
- borne botulism.
- Wound botulism.
- Infant botulism.
Characteristics
A gram positive,
obligate anaerobic,
spore-forming,
rod-shaped bacterium.
Commonly found in soils
and marine sediments.
Since it is found in thesoil,
it
the design
1.Typhoon
-월 최대강우인 2020mm 적용 시 일 강우량이 100mm에 달하므로 저류조의 용량이 조기에 포화됨.
-Interrupt emission of rainwater in retaining facility, as flow rate is enough by precipitation
2.Sedimentation of retaining facility
-The longer operating time is, the more sediment is piled up. So function is declined.
3.Non-point source
-Because
II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
Grit chamber
Definition
Remove the grit and inorganic matter over 0.2mm in waste water
[ Function ]
Prevent abrasiona and damage of machine equipment
Prevent Piping system blockage
Prevent adverse effect by deposits
Gravity type chamber
Using the gravity and velocity of waste water
Take thedeposits to sludge facility, using sand pump
Aeration type chamber
Using centri