design of public works fonyÓ gyÖrgy fonyo@vcst.bme.hu (06-1)-463-2955 technical university of...

Design of Public WorksDesign of Public WorksFONYÓ GYÖRGYFONYÓ GYÖRGY

FONYO@VCST.BME.HU

(06-1)-463-2955(06-1)-463-2955

www.vcst.bme.hu

ftp://designofpublicworks

Technical University of BudapestTechnical University of Budapest

Department of Water Management and Department of Water Management and Sanitary EngineeringSanitary Engineering

Requirements:Requirements:

•PresentationPresentation

•TestTest

Program:Program:

•LecturesLectures

•Practical work cosultations (design)Practical work cosultations (design)

•Field tripsField trips

SURFACE WATER TREATMENT SURFACE WATER TREATMENT TECHNOLOGIESTECHNOLOGIES

Pre-chPre-ch

ST

RM RM

ChCh ChCh

ChCh

ChCh

Flocculator

Sedi. tank

Rapid sand filter

GAC Ozon

BASIC PROCESSESBASIC PROCESSES

•Oxidation - reductionOxidation - reduction

•Phase separation:Phase separation: gas - liquidgas - liquid

solid - liquidsolid - liquid

course - sedimentation flotationcourse - sedimentation flotation

fine - sand filtrationfine - sand filtration

•Chemical precipitationChemical precipitation

•Adsorption:Adsorption:

activated carbonactivated carbon

powderedpowdered

granulatedgranulated

•pH and buffering capacity controlpH and buffering capacity control

•Others ( membrane processes )Others ( membrane processes )

PIPELINE LAYOUTPIPELINE LAYOUTprimary feeder (arterial main)

secondary feeder

WATER DISTRIBUTION SYSTEM

WATER DISTRIBUTION SYSTEM

• INTERCONNECTED NETWORK OF

PIPELINES

• STORAGE TANKS

• PUMPS

• SMALLER APPURTENANCES– VALVES– FLOW METERS

WATER DISTRIBUTION SYSTEM

WATER DISTRIBUTION SYSTEM

• ADEQUATE QUANTITIES

• SUFFICIENT PRESSURES

HYDROSTATICS PRESSURE

HYDROSTATICS PRESSURE

PER CAPITA DEMANDPER CAPITA DEMANDType of use L/d/person % of total

Domestic 300 44

Commercial/industrial

260 39

Public 60 9

Loss 50 8

Total 670 100

PEAK: 2 * 670

VARIATION IN WATER DEMAND

VARIATION IN WATER DEMAND

PROBLEMSPROBLEMS

TUBERCULATION

IRON-OXIDE

CALCIUM-CARBONATE

SEWERAGE COLLECTION SYSTEM

Wastewater types:

• Sanitary (domestic)

• Industrial

• stormwater

SEWERAGE COLLECTION SYSTEM

Sewerage types:

• Combined sewers

• Separate sewers

OR WWTP

precipitationprecipitation precipitation

Pre sedimentation

Post sedimentation

Activated sludge

unitPost sedimentation

disinfection

SOPHISTICATED TECHNICS

In reverse osmosis, the idea is to use the membrane to act like an extremely fine filter to create drinkable water from salty (or otherwise contaminated) water. The salty water is put on one side of the membrane and pressure is applied to stop, and then

reverse, the osmotic process.

A semipermeable membrane is a membrane that will pass

some atoms or molecules but not others

priceprice(Ft)(Ft)

16001600

14001400

12001200

10001000

800800

600600

400400

200200

1010 2020 3030 4040 5050

quantityquantity(q)(q)

6060 7070

aa

ff

ee

dd

cc

bb

gg

SS

aa

ff

dd

cc

bb

gg

DD

point of balancepoint of balance

lacklack

surplussurplus

ECONOMY

MARSHALL CROSS