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|---|---|---|---|---|---|
| 1 | excess sludge from on-site waste water treatment system | 浄化槽汚泥 | |||
| 2 | excess sludge from septic tank | 浄化槽汚泥 | |||
| 3 | night soil septic tank sludge | し尿浄化槽汚泥 | |||
|
|
|
|
|
|
|---|---|---|---|---|---|
| 1 | excess sludge from on-site waste water treatment system | 浄化槽汚泥 | |||
| 2 | excess sludge from septic tank | 浄化槽汚泥 | |||
| 3 | night soil septic tank sludge | し尿浄化槽汚泥 | |||
 
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