Предимствата на вакуумни канализационни системи 2

Operation and maintenanceVacuum vs. gravityBG, Sofia Nov 2016

Vacuum sewer systemsOperation and maintenance

Operation and maintenance | 05/01/2023

The myth: no maintenance in gravity systems

The truth: a whole industry is built on cleaning and repairing gravity systems


The truth:



The myth: no maintenance in gravity systems

So, let us speak about it!


The truth:


Roediger® vacuum systemsLabour▪ Regular check of collection chambers▪ Regular check of vacuum station

Replacement/repair▪ Annual service of the vacuum station▪ Controllers (app. every 10 years) replacement▪ Valve membrane (app. every 5 years) replacement

Gravity systemsLabour▪ Regular check of manholes▪ Pipeline inspection, CCTV inspections▪ Cleaning accumulated sludge, slime and debris

(jetting with high-pressure)▪ Flushing

Replacement/repair▪ Service of all discharging pumps from pump- and

lifting stations▪ Rehabilitation of gravity sewers▪ Rehabilitation of manholes



Roediger® vacuum systemsElectricity consumption▪ Vacuum pumps (approx.15-25 kWh/PE/year)▪ Discharging pumps (2 pieces)

Network maintenance:▪ No maintenance, vacuum network is self-cleansing

Sewage treatment:▪ Handle only wastewater▪ Handle aerated waste water ▪ Closed system - handle only communal

wastewater

Gravity systemsElectricity consumption▪ Discharging pumps of all lift- and pump stations

Cleaning the system:▪ H2S deodorization

▪ Cleaning of sedimentation ▪ Flushing, spooling the system

Water treatment:▪ Handle big amount of infiltrated ground water▪ Handle aged and possibly septic wastewater▪ Handle wastewater from unsure source


Vacuum sewer systemsOperation safety

Roediger® vacuum systems

Safety operation!

Gravity systems


Vacuum sewer systemsOperation safety

Roediger® vacuum systemsOperation safety▪ No operational risks to operators▪ All equipment can be accessed from the ground

level▪ No direct contact with wastewater ▪ No climbing into manholes or confined spaces

required

Gravity systemsAtmospheric hazards in confined spaces:▪ Low oxygen (two men required)▪ Hydrogen sulphide (corrosion)▪ Explosive concentrations of methane

Physical hazards with confined space entry▪ Objects falling onto operators

Biological hazards:▪ Germs and diseases▪ Viruses▪ Pathogenic organisms

Insects, animals

Bad smell


Vacuum sewer systemsOperation costs


Vacuum sewer systemsMaintenance costs


Vacuum sewer systemsOperation costs


Vacuum sewer systemsMaintenance costs



Wishful thinking: System with no maintenance

Reality: Every system needs maintenance


Aqseptence Group GmbHVacuum Sewerage & Recovery SystemsKinzigheimer Weg 104-10663450 Hanau / Germany

Telephone +49 (6181) [email protected]

Предимствата на вакуумни канализационни системи 2

Business

Transcript of Предимствата на вакуумни канализационни системи 2