WATER TREATMENT WORKS PROFORMA

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Raw Water Quality

Parameter Units Min Average MaxTurbidityColourpHTempT. hardnessCa HardnessT. alkalinityECTDSIronManganeseSulphateChlorideNitrateNitriteAmmonia

Comments:

Treated Water Quality

Parameter Units Min Average MaxTurbidityColourpHTempT. hardnessCa HardnessT. alkalinityECTDSIronManganeseSulphateChlorideNitrateNitriteAmmoniaChlorine resid.

Comments:

Treatment Works Layout____________________________________________________________________

Treatment Works Flow Diagram

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WATER TREATMENT WORKS PROFORMA

Name of Works ………………………………………… Inspection Date ….. /…. /20

Location : … …………………………

Construction date: ….. ….

Raw Water Source : … …

Design Capacity : ………..m3/d Current Output :…………. m3/d.

Maximum Output : …………. m3/d

Brief description of works:

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1. Raw water abstraction :

Location . …… …

Gravity Pumped

Description :

Bar screens spacing …….. mm

Raked screens spacing ……… mm

Rotary screens mesh size ……. mm

Pumps:

Type ( i ) ……………………… …No. of pumps …………..

Manufacturer ……………………..

Delivery ……………………………..@ Head ……

Pump motor : Fixed speed Variable speed

Manufacturer …………………….. Rating……… kw

Speed ……… rpm Voltage ……….….V

Control: local remote from ………………………………

Type ( ii ) …………………………..No. of pumps ……..

Manufacturer … ……………………………….

Delivery ………………………………@ Head………

Pump motor : Fixed speed Variable speed

Manufacturer …………………………….Rating……..…..kw

Speed ……… .rpm Voltage …… V

Control: local remote from ………………………………

Condition:

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2. Raw water storage :

Location:

No. of reservoirs ……..….. Type of storage reservoir(s) …………

Storage volume ( i )……..… m3

Outlet : Gravity Pumped

Condition:

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3. Raw water transmission :

Distance to treatment works inlet ……… m

Type of transmission system : ……….

Pipe diameter …………………mm

Condition:

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4. Treatment works inlet

Inlet flow control : none Valve manual set Valve remote set

Inlet Chamber :

Dimensions : L …… m, W ….… m, H ….… m , diameter…………m

Exit from chamber : Pipe Weir Channel

No of exits ……..

To ………………..

Condition:

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5. Aeration

Type ……………………………………………………..

Condition:

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6. Pre-Ozone :

Reason for ozone treatment ……

No. of ozonators ………….. Type …………….

Manufacturer …………

Min output …..……kg/h, Max output ………… kg/h

Ozone contact tank volume ……….m3

Type of Ozone destructor …………………………………………………..

Pre-ozone dose ……….. mg/l,

Post-ozone dose ……….mg/l

Type of post ozone destructor ………………………………………………..

Condition:

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7. Flash/rapid mixing

Type of mixing : Mechanical Hydraulic

No of units ……… No. of stages…………. Total residence time ………secs @ … .m3/h/stage

Description : …………………………………………………………………………...

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Condition:

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8. Flocculation:

Type of flocculator : Mechanical Hydraulic

No. of stages………… …. Total residence time ……….… mins

Residence time /G value per stage : ( i ) ……...…min/…….…s-1

( ii ) ………. min/ ………s-1

( iii ) ……… min/ ………s-1

Description : …………………………………………………………... ……..…………………………………………………………………………………………………………………………………………

Condition:

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9. Clarification

Type ( i ), No. of tanks …………..

Manufacturer………………………………

Loading rate ……………m3/m2/h Dimensions ………………………...

Desludging system …………………….

Time between desludging operations …………… hrs.

Duration of desludging …………… mins.

Condition:

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10. Filtration

Type ( i ), No. of filters …………. Type……..

Manufacturer ………………………………………………………………………….

Filtration rate …… m/h, Dimensions L ….… m, W ……… m

Type(s) of media : …………… … Size…………mm Depth ……. m … ……………..Size…………mm Depth ……. m

Average run length …………….. hrs

Backwash initiation : time headloss turbidity […………. m ] [ ………..NTU ]

Underdrain :

Suspended floor Latterals

Type of nozzles …… …….. Nozzle spacing ………………m

Support media : Size …………..mm; Depth …………….m

Operation :

Constant rate Declining rate Constant head

Increasing head

Control :

Float Flow meter Level probes

Other

Describe …………………………………………………….

Condition:

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11. Backwash :

Air scour rate ………m/h, Duration……… mins.

water rate……… …..m/h, Duration ………mins.

Backwash flow rate compensation for water temp. : Yes No

Washwater supply : Elevated tank Pumps

Tank volume………….m3 Static head above filters …………..mNo. of pumps …………Type of backwash pump …………………..……

Manufacturer ………………………………………………………………..

Fixed speed Variable speed

Delivery…………………………..@ Head…………………m

Condition:

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11. Activated carbon

Reason for activated carbon treatment …………………………………..

Powdered carbon Granular carbon filters

Type of granular carbon ………….... Manufacturer …………….…….. ..

No. of carbon filters…….. Dimensions L……….m, W ………… m

EBCT …………… mins

Time between regenerations ……………….

Condition:

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12. Treated water storage

No. of reservoirs …………., Volume ( i ) …….… m3

Volume ( ii ) ……….m3

Separate chlorine contact tank; Yes No Volume ………….m3

Condition:

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13. Treated water forwarding

Gravity Pumps

Pumps: Type ( i ) Manufacturer ………………………… ……..

Type of pump …………………..…...

Delivery………….. l/s , @ Head …… m

Motor : Fixed speed Variable speed

Speed …………rpm, Rating ………… kw

Voltage ……………. kV

Type ( ii ), Manufacturer ………………..

Type of pump ………

Delivery ………… l/s m3 , @ Head ………… m

Motor : Fixed speed Variable speed

Speed …… …..rpm, Rating ………… kw

Voltage ….…kV

Condition:

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14. Chemical make-up and dosing

a) Primary coagulant :

Type ……………….……Produced by …………………..………...

Supplied in bags , Weight of bags……………kg

Supplied as liquid , Volume of container ………..m3 , Strength …………

Supplied in bulk , Per delivery…… .tonne, Strength …………...

Total storage capacity at treatment works …………… tonne

No. of storage tanks ……… . Volume per tank ………….. m3

No. of make-up tanks………………….Volume per tank ……………….m3

Strength of made-up solution …………………….

Solution dosing pumps :No. of pumps ………….. Min delivery …………….l/h

Max delivery …………….l/hManufacturer

…………………………………………………………………..

Automatic flow proportional dosing, Yes No

Carrier water, Yes No

Range of dose : ……………..mg/l to ……………….mg/l

Dosing point(s)………………………………………………………………

Rapid mix facility : mechanical Hydraulic static mixer

Residence time at design flow ………………mins

b) Polyelectrolyte :

Type……………. ….. Manufacturer …………………………. ……

Weight of bags ……… kg Storage capacity …………… kg

Type of make-up system ……………………………………………………………..

Carrier water, Yes No

Solution dosing pumps :

No. of pumps …………….. Min delivery …………….l/h

Max delivery …… l/hManufacturer ………………………………………………………………..

Automatic flow proportional dosing , Yes No

Range of dose, ………… mg/l to ………. mg/l

Dosing point(s) ……………………………………………… ………….

Residence time ………mins.

c) Lime dosing :

Pre-lime Post lime

Delivered in : Bags Bulk

Weight per bag ………..kg, Bulk delivery ………………tonne

No. of silos ……………… Silo capacity ………………tonne

No. of make-up tanks …………… Volume per tank ………………m3

Slurry strength ……………..%

Slurry dosing pumps :No. of pumps ……………. Min delivery……………..l/h

Max delivery …………….l/h

Automatic flow proportional dosing Yes No

Automatic via pH monitor Yes No

Carrier water, Yes No

Saturator; Yes No

Max capacity …………………………..

Range of lime dose; Pre-lime ………………..mg/l to ………………mg/lPost-lime ……………….mg/l to ………………mg/l

Dosing point(s) ………………………………………………………………………...

Rapid mix facility; Pre-lime ………………………………………………….

Post-lime …………………………………………………

d) Chlorination :

Gas Hypochlorite On-site generation

Gas :Delivered in : Cylinders Drums

Cylinder capacity ……………..kg Drum capacity ……………….kg

No. of containers in store ………………….

No of containers on-line …………………..

Abstaction from containers; Gas Liquid

No of evaporators ……………… Capacity …………………..kg/h

Chlorinators :No. of chlorinators; duty ………standby…….. Max delivery

……….kg/hTurn-down ratio …………….Manufacturer

………………………………………………………………….Type ………………………..

Hypochlorite :Sodium hypochlorite Calcium hypochlorite

Storage capacity on site ………….m3

No. of dosing pumps ……………, min. delivery ………..l/hMax delivery ………..l/h

On-site generation :No. of units ……………. Max capacity ……………kg Cl2/hNo. of dosing pumps ……………, Min. delivery ………..l/h

Max delivery ………...l/h

Flow proportional dosing residual control

Range of chlorine dose; …………………. mg/l to ………………mg/l

Required chlorine residual in treated water ……………….mg/l Dosing point location(s) …………………………………………………………

……………………………………………………………………………..

e) Other chemicals :

Condition:

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15. Instrumentation :

a) FLOW METERS

( i ) Location………………………………………………………………………………….Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………

Monitor Recorder Controller for ………………………………..

…………………………………………………………………………………………………

Local display Remote display at ………………………………………….

( ii ) Location…………………………………………………………………………………. Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………

Monitor Recorder Controller for ………………………………..

…………………………………………………………………………………………………

Local display Remote display at ………………………………………….

( iii ) Location………………………………………………………………………………… Manufacturer ……………………………Model ……………………………………………..Type ……………………………………………………………………………………………Range ………………………… to ……………………………

Monitor Recorder Controller for …………………………………

…………………………………………………………………………………………………..

Local display Remote display at ………………………………………….

( iv ) Location ………………………………………………………………………………… Manufacturer ……………………………Model ………………………………………………

Type …………………………………………………………………………………………….Range ………………………… to ……………………………

Monitor Recorder Controller for …………………………………

………………………………………………………………………………………………….

Local display Remote display at ………………………………………….

( v ) Location …………………………………………………………………………………. Manufacturer ……………………………Model ………………………………………………Type …………………………………………………………………………………………….Range ………………………… to ……………………………

Monitor Recorder Controller for …………………………………

…………………………………………………………………………………………………..

Local display Remote display at ………………………………………….

Condition:

b) TURBIDIMETERS

( i ) Location …………………………………………………………………………………..Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

( ii ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model

…………………………………...Range ……………………………… NTU to …………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

( iii ) Location …………………………………………………………………………………Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

( iv ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

( v ) Location ………………………………………………………………………………….Manufacturer ……………………………………… Model …………………………………...Range ……………………………. NTU to ………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

( vi ) Location ………………………………………………………………………………...Manufacturer ……………………………………… Model …………………………………...Range ……………………………… NTU to …………………………….NTU

Monitor Recorder

Local display Remote display at …………………………………………..

Condition:

c) pH METERS

( i ) Location …………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( ii ) Location ………………………………………………………………………………….Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( iii ) Location …………………………………………………………………………………Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( iv ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… pH units to ……………………..pH units

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

Condition:

d) CHLORINE RESIDUAL METERS

( i ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2

Free chlorine Total chlorine

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( ii ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2

Free chlorine Total chlorine

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( iii ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2

Free chlorine Total chlorine

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

( iv ) Location ………………………………………………………………………………...Manufacturer ………………………………………. Model …………………………………..Range …………………… mg/l Cl2 to …………………….. Cl2

Free chlorine Total chlorine

Monitor Recorder Triple validation

Controller for …………………………………………………………………….

Local display Remote display at ………………………………………….

Condition:

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16 Sludge and Wastewater Treatment/disposal