- ... intake of over-sludge water from landfills and discharge of treated water into the centralized sewage network of the city of Baikalsk.

- Over-sludge water is returned to technological processes. According to data for 2001 and the first quarter of 2002, the load of phosphates in the wastewater...
https://www.google.ru/search?q=landfills "over-sludge water"...

above-sludge and over-sludge are not synonyms. They have completely different nuances.


We determined the content of 72 chemical elements in above-sludge water of 11 cells at Baykalsk Pulp and Paper Mill and 4 open water flows near industrial waste
https://www.researchgate.net/publication/349193964_MULTI-ELE...

In addition to the processes described above, sludge dewatering takes place with belt presses following anaerobic digestion/sludge stabilization
https://www.munciesanitary.org/departments/water-pollution-c...


Clearance of waters after pumpingout of supernatant water. This variant makes sense with waters, which have a clear water phase above sludge layer and mak
http://environment-technology.huning.de/042ae699530efe638/04...

landfills to lower and clean above-sludge waters, which made it possible to..

https://whc.unesco.org/document/198559