Tricel Vitae UK6 Manuel utilisateur

206 Rev 3 Jan 2019

Tricel® Vitae UK6

Wastewater Treatment Plants

Engineering a green future

Contents

1Health & safety precautions ......................................................................................................4

1.1 General..............................................................................................................................4

1.2 Electrical maintenance......................................................................................................4

1.3Installation ........................................................................................................................ 5

2Introduction: Tricel Vitae...........................................................................................................6

2.1 The Wastewater purification process................................................................................6

Stage 1: Buffer chamber ................................................................................................6

Stage 2: Aeration (treatment) chamber.........................................................................6

3Tricel Vitae specification...........................................................................................................7

3.1 Dimensions .......................................................................................................................7

3.2 Tank drawing.....................................................................................................................8

4Transportation & lifting.............................................................................................................9

4.1 Transportation .................................................................................................................. 9

4.2 Lifting................................................................................................................................9

Installation

.............................................................................................................................11

5.1 Installation planning .......................................................................................................11

5.2 Inspection on reception of tanks.....................................................................................12

5.3 Positioning and precautions............................................................................................12

5.4 Types of installation........................................................................................................12

5.5 Installation procedure: Tricel Tanks................................................................................13

Excavation (dry & wet sites): .......................................................................................13

Step by step – installation procedure ..........................................................................15

5.6 Gravel specification ........................................................................................................16

5.7 Concrete specification ....................................................................................................17

5.8 Topsoil requirements......................................................................................................17

5.9 Electrical requirements...................................................................................................17

5.10 Risers ..............................................................................................................................18

5.11 Non-standard ..................................................................................................................18

Alternative to concrete backfill (for wet sites without risers only):

...................18

Sloping ground: .......................................................................................................19

Proximity to rolling & static loads: ..........................................................................19

5.12 Additional accessories ....................................................................................................20

Grease trap ..............................................................................................................20

Sampling chamber...................................................................................................20

6Capsule installation.................................................................................................................21

7Commissioning ........................................................................................................................21

7.1 Control panel start-up.....................................................................................................22

7.2 Operation of the control panel........................................................................................24

Basic screen display.....................................................................................................24

Start-up phase ‘Start 150%.’.......................................................................................25

8Disposal of treated water ........................................................................................................26

9Maintenance ............................................................................................................................26

9.1 Regular maintenance ......................................................................................................26

9.2 Annual maintenance........................................................................................................26

9.3 Annual service(available from your supplier) .................................................................27

9.4 Production of sludge .......................................................................................................27

9.5 Desludging (emptying the solid waste from the primarychamber) ................................27

10 Operating conditions ..........................................................................................................28

11 Troubleshooting..................................................................................................................30

11.1 Odours.............................................................................................................................31

12 Certification........................................................................................................................32

12.1 Declaration of performance ............................................................................................32

13 Terms & conditions .............................................................................................................36

1Health & safety precautions

Reading the full technical manual prior to installation is important. Retain this document for the

lifetime of the product and in the event of a change of ownership of the site, transfer to the new

owner.

As health and safety are of vital importance, the following aspects are critical:

Precaution

Prior to installing, please consider the finished garden level. If you envisage that a

manholeriser/extensionmay be requiredto ensure manholecover remainsabove finished

ground level, the plant must be installed with the appropriateexcavationfoundationand

backfilltoaccommodatethe riser. Please refer to section 5.10, ‘Risers.’

1.1

General

•

It is important that all of the information contained in this manual be adhered to at

all times.

•

Treatedwastewaterisnotsuitableforhumanconsumption.

•

It is importantthatlocksbefittedto the manhole cover to preventaccidental access.

•

Manholes are ratedto125kgand are for pedestrianuseonly.

•

Neverenteratankunless qualifiedtodoso.

•

Do not use naked flames in the vicinityof the tank due tothe danger of combustion.

•

The manhole covers shall never be left off of an unattended tank. Always lock the

covers of the plant when work gets completed.

•

Sewage and sewage effluent can carry micro-organisms and gases harmful to human

health. Any person carrying out work on the

Vitae

must be appropriately trained.

•

Suitable protective clothing; including gloves, goggles should be worn at all times.

Always remove contaminated clothing and protective equipment after working with

sewage treatment plants.Wash handsand face prior to eating, drinkingorsmoking.

•

Lock all manhole covers for safety. Tanks are supplied with three locking points, as

shown below. All points should be locked with a suitable locking device to prevent

unauthorised access. Locks do not come supplied.

1.2

Electrical maintenance

•

All electrical work is to be carried out by a qualified electrician using suitable

materials for the application.

•Do not open the Tricel Vitae’s electrical unit cover without firstly isolating the mains

power.

•

Electrical work must be carried out strictly to the manufacturer’s instructions and to

the relevant national rules for electrical installations.

•

When working with machinery/electrical equipment, the proximity of water shall be

noted. Electrical equipmentshall not be wet when working with it.

•

There is the potential danger of falling into the tank during desludging while manholes

may be open – take all necessary safety precautions when desludging.

1.3

Installation

•

Plan excavationworkwithdueregardtohealth andsafetyrequirements.

•

Excavated material should either beshored or battenedbackto a“safe”angle.

•

Use appropriate liftingequipment.

•

Take carearoundgroundsworkmachinery.

•

Keepproper footing and balance at all time.

•

It is necessary to vent the Tricel Vitae at the inlet and the outlet of the plant.

2Introduction: Tricel Vitae

Tricel Vitae wastewater treatment plants are manufactured from sheet moulding compound (SMC)

ensuring a durable and high-strength product. They are also constructed from modular

components; these modules are then fabricated together to make different size tanks.

The Tricel Vitae is suitable for domestic and light commercial applications and is a sequential batch

reactor (SBR). There are two zones in the SBR treatment system. The first is a buffer zone where the

wastewater gets stored. From here it is carried into the second zone for treatment in batches.

Wastewater is then treated for a set amount of time, after which it is expelled from the tank. As the

treatment is for a fixed amount of time in each batch, the water emitted from the tank is to the

highest quality standard even in times of high usage

2.1

The Wastewater purification process

Stage 1: Buffer chamber

The buffer chamber acts primarily as a storage zone to hold the wastewater until it is ready to be

treated. This ensures that even in times of low usage there is a constant supply of wastewater to

feed the bacteria. While being stored the heavy solids settle to the bottom of the tank and the light

particles, like fats or oils, float to the top of the water to create a scum. An airlift pump takes

wastewater from the buffer chamber to the aeration chamber in batches at the beginning of the

aeration cycle. The airlifter is designed to ensure that only the wastewater from the centre of the

chamber gets transferred into the aeration chamber.

Stage 2: Aeration (treatment) chamber

This stage of the process takes place in the second chamber where submerged aeration combines

the principles of the biofilm and activated sludge processes. Masses of naturally occurring bacteria

form in clumps at the bottom of the chamber. These bacteria get sustained with air delivered by

means of an aerator at the bottom of the tank which turns on intermittently throughout the cycle.

After the aeration takes place, there is a settling phase in which the aerator is turned off for 1.5 -2

hours. This process allows for the solids and the bacteria to settle to the bottom of the chamber. As

a result, the water above is cleared of any solid particles before it gets expelled from the tank.

During the settlement phase, the batch of liquid is kept in this chamber for a set amount of time

and then expelled from the tank using the clearwater lifter. Simultaneously, the excess sludge

lifter recirculates the excess sludge from the tank back to the primary chamber. Doing so ensures

that there is a constant level of sludge in the primary chamber to feed into the aerated zone.

The clearwater enters the sampling pot before leaving the tank. Doing so allows for the water to

get tested for purity. The remaining treated liquid now meets the required standard to be safely

passed out of the Tricel Vitae unit.

3Tricel Vitae specification

3.1

Dimensions

Tricel Vitae: certified to EN 12566-3:2005

Tricel Vitae

UK6

Maximum treatment capacity

Design flow rate (max)

litres/day

900

BOD load (max)

kg/day

0.36

Primary chamber volume

litres

2630

Nominal Inlet pipe diameter

110

Nominal Outlet pipe diameter

110

Overall length

2.6

Overall width

1.64

Overall height

2.24

Inlet invert to base

1.4

Outlet invert to base

1.3

Inlet invert to ground level

0.51

Outlet invert to ground level

0.61

Weight empty**

300

No. of persons

1-6

Air blower rating (mean)

Thickness (minimum)

Desludge period (minimum)***

year

1.5 – 3

No. of Diffusers

Units

** Allow 100kg extra for lifting purposes

*** Depending on use & design value

3.2

Tank drawing

The arrow indicates an access point which must be opened to facilitate the desludging of the

primary chamber. However, do not desludge the reactor/aeration chamber as this will affect

the treatment efficiency of the plant.

WARNING: care must be taken not to damage pipework when desludging the tank

4Transportation & lifting

4.1

Transportation

•

Tanks must be held down during transportation using nylon straps, do not use cables or

chains to secure tanks. Do not over tighten straps that can result in deformation of the

tank shell. Do not drop or roll tanks from the truck.

•

Move tanks only by lifting and setting, do not drag or roll.

•

Always set the tank(s) on flat, smooth ground clear of debris. In order to prevent

movement, tanks may need to be tied down and chocked. Position the chocks in the

locations shown below:

4.2

Lifting

•

A machine and webbing lifting straps best lift tanks – do not use chains or wire ropes in

contact with the tank.

•

Ensure tank is empty when lifting.

•

Tanks from one to four modules (4.6m) in length should be lifted using the eyebolts on

the tank. Ensure the angle between the slings is not greater than 60o when lifting the

tank. In order to ensure the angle is not greater than 60o the following sling lengths

are required:

Length of tank

Minimum length of the

sling

2.1

2.6

3.1

3.6

4.6

Ensure sufficient lifting height can be achieved and is available on site. If not a lifting bar, as per

option two below, is required.

Option 1 Option 2

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