sludge

Ил, шлам, осадок

- activated sludge

- artificial sludge

- bulking sludge

- densified sludge

- dewatered sludge

- digested sludge

- dried sludge

- excess sludge

- primary sludge

- raw sludge

- recycle sludge

- return sludge

- secondary sludge

- surplus sludge

- swelled activated sludge

- thin sludge

- waste activated sludge