Andidrain Brochure

UVDB 

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DISAB Centurion: High Performance 

Wet/Dry Materials Handling Unit 

DISAB Centurion: 

• High performance vacuum tanker that will 

vacuum dry or wet material 

• The DISAB can vacuum material from 

200m away and from a tank that is up 

to 100m deep 

• High tip directly into a skip 

• Dry material can be placed in bulk bags 

using the bagging facility at the rear 

Applications: 

• Sludge and primary tank cleaning 

• Detention tank cleaning 

• Grit detritor cleaning 

• Deep wet well cleaning 

• Activated sludge lane cleaning 

• Anaerobic digestion plant cleaning 

• Large culvert cleaning 

• A Disab can empty a tank containing grit, 

screenings and sludge far quicker than a 

conventional JetVac. 

DISAB Centurion 

T | 01228 672300 or 01274 583696 E | enquiries@andidrain.co.uk W | www.andidrain.co.uk

Mobile Screening and Dewatering Plant 

The D:MAX is a mobile screening & classification 

system which efficiently removes grit, screenings and 

other troublesome solids from your waste stream. 

A specialist plant that is used in tank cleaning projects 

to screen and dewater material from sludge holding 

tanks, primary tanks, digesters, storm detention tanks, 

pumping stations and culverts. 

It is mounted on a low loader trailer and transported to 

site by a tractor unit for temporary deployment. 

The mobile screening and dewatering process: 

1. Remove wet material from the tank using the DISAB. 

2. The DISAB is connected to the mobile screening plant and 

transfers material directly into the mobile screening plant. 

3. The material is screened and the dry material is separated 

into grit and screenings which is deposited into two 

separate skips. 

4. The screened effluent is pumped into the site drainage or 

site process. 

The mobile screening unit will: 

• Reduce the volume of the waste for offsite disposal by 

up to 90% 

How does it work? 

First Stage 

The wet material is delivered to the Mobile Screening and 

Dewatering Plant and fed directly onto the primary course 

vibrating screen where the screenings are removed. This 

dry material is discharged into a skip at the end of the 

primary screen. 

Second Stage 

The wet material passes through the course screen drops into 

a hopper and is pumped from the hopper to a hydro-cyclone. 

The grit size particles are separated from the liquid by 

centrifugal force and dropped onto the final vibrating screen 

for final dewatering and are discharged into a skip at the end 

of the final screen. 

Third Stage 

The screened wastewater is pumped from the hydro-cyclone 

into the customer’s site drainage or site process. 

The operation is continuous and the pumps and screens are 

electrically driven by a 200 KVA generator that is fitted to the 

front of the low loader chassis. 

• Screen and dewater the waste onsite 

Dry material from Mobile Screening and Dewatering Plant deposited into skip. 

DISAB and Mobile Screening and Dewatering Plant. 


Kaiser Whale Sewer Recycler 

Kaiser Whale: 

• Jets at 410 Litres Per Minute up to 200 Bar 

and 200m of jetting hose 

• Vacuums to depths of around 20m deep 

• Water Reuse through on board recycling 

• The recycler can work continuously as the 

water removed by the vacuum hose from 

the sewer is filtered in the recycler’s debris 

tank and pumped back through the jetting 

hose. This is compared to a JetVac that 

has to spend many hours a day filling up 

it’s jetting tank with mains water 

Applications: 

• Sewer Cleaning 

• Culvert Cleaning 

• Highway Drainage Cleaning 

• Root Cutting 

• Large Diameter Pipe Cleaning 

Kaiser Whale sewer cleaning recycler. 


Case Study 

Pipe Cleaning and Surveying 

The problem 

The highway drains were overflowing during periods of 

significant rainfall, causing localised flooding and the 

public footpaths and verges that the highway drains ran 

underneath were due to be replaced. 

The solution 

A length of 3400m of mainly 150mm diameter highway 

carrier drain and associated road gullies and lateral 

connections were cleaned and surveyed using an 

Andidrain sewer cleaning recycler and CCTV Unit. 

Andidrain Kaiser Whale Sewer 

Cleaning Recycler. 

Deploying the Crawler camera. 

The CCTV surveys identified some lengths of the carrier 

drain as being in poor structural condition and some 

lengths having root ingress. 

Root masses were cut and removed using a warthog 

and flail, followed by a complete clean of the system. 

To prevent root regrowth and further deterioration in 

the condition of the pipe, defective sections were lined 

using our UV (Ultra Violet) Pipe Lining rig, with lateral 

connections reopened using our remotely controlled 

robotic cutters. 

“Over the last 5 years I have found Andidrain to 

be a reliable and flexible and easy to do 

business with. They have adapted to the ever 

changing demands in the industry and provide 

a quality service whilst always looking for 

improvements and efficiencies.” 

Tim Shepherd, Programme Development Manager - 

Kier’s Highways Business 

Pipe survey controller. 


Case Study 

Tank Cleaning 

The problem 

The pumps in a large 16m wide and 20m deep inlet 

pumping station at a wastewater treatment works were 

frequently blocking due to the volume of silt and 

screenings in the wet well. 

The solution 

The thick layer of sludge, screenings and silt in the wet 

well was first removed using a DISAB vacuum tanker 

working from the top only. 

As the levels of sludge, screenings and silt in the tank 

decreased a safe working area was cleared in the tank. 

Once the tank was deemed to be safe to enter after gas 

testing, two confined space trained operators were 

lowered into the wet well using a man riding basket and 

mobile crane. A further mobile crane and man riding 

basket was on standby at all times. 

When the operators were safely on the base of the well, 

the remaining material was broken up using the 

JetVac’s jetting hose and removed using the DISAB’s 

vacuum hose. 

The material removed from the well was screened 

using the mobile Screening and Dewatering Plant and 

the screened water was pumped back into the site 

drainage. The silt and debris was deposited into an 

eight yard builders skip for disposal offsite using our 

skip vehicle. 

Mobile Screening and Dewatering 

Plant and JetVac. 

“I have worked with Andidrain on the 

Industrial Cleaning contract for 4 years. 

I have always found Andidrain to be 

professional and reliable and their 

team have an extensive knowledge of 

industrial services work in the water 

industry. They are able to undertake 

large complex tank cleaning projects 

and approach any work with a can 

do attitude.” 

Sean Deacon, Vactor Controller, 

Environmental Services - United Utilities 

Mobile Screening and Dewatering Plant. 

DISAB removing silt, sludge and screenings from the 20m deep wet well. 


Case Study 

Anaerobic Digester Cleaning 

The problem 

The mixers in a customer’s Anaerobic Digester had 

stopped working due to the volume of solids that had 

built up in the tank and also the customer needed to 

repair several small holes in the tank. To repair the 

mixers and the holes in the tank the tank needed to be 

emptied and cleaned. 

The solution 

The material in the Anaerobic Digester was broken up 

using a fire hose connected to a wash out onsite and 

then vacuumed out of the tank using one of our 

DISAB Centurions. 

Completion of the Works 

In a period of ten days we removed, screened and 

dewatered 900 tons of material from the Anaerobic 

Digester to enable the customer to repair the AD Plant. 

Mobile Screening and Dewatering Plant discharging dry 

material into the commercial bin at the rear of the plant. 

The wet material was then blown from the Disab into 

our mobile screening and dewatering plant which 

processed the material and deposited the dry material 

into a commercial bin at the rear of our mobile 

screening and dewatering plant. The customer removed 

the commercial bin using a forklift and tipped the dry 

material into their dry waste bays onsite for disposal. 

Our mobile screening and dewatering plant pumped the 

screened wastewater back into the customer’s process. 

Once the tank had been emptied it was given a final 

clean using the fire hose connected to a wash out. 

Dry material deposited into the customers dry waste bays onsite. 

DISAB and Mobile Screening and Dewatering Plant. 


UV (Ultra Violet) Pipe Lining 

UV Pipe Lining: 

• Based on the ProKasro Ultra Violet (UV) 

cured in place pipe technology, the Andidrain 

Lining Division are able to carry out 

trenchless pipe rehabilitation in a fraction of 

the time of conventional pipe lining methods 

using water or steam 

• The pipe liner is made of fibre glass and is 

impregnated in the factory with a liquid resin 

• The pipe liner is installed by winching the 

liner into place using a downstream and 

upstream manhole. Once in place the liner is 

inflated by air and a UV light train is pulled at 

a pre-determined speed through the lining 

which cures the liner in place 

Applications: 

• Pipes diameters from 150mm to over 

1600mm can be lined 

• The full pipe length can be lined manhole 

to manhole or a small section of the pipe 

length can be lined (patch lining) 

• Structural liner to prevent further 

deterioration of the pipe 

• To prevent root regrowth after root cutting 

• Pipe lining to stop ground water infiltration 

or exfiltration (leaking pipe) 

• To improve flow characteristics to prevent 

operational problems such as repeat 

blockages 

 

• Lateral connections are logged during the 

pre-lining CCTV survey and post lining are 

reopened using our robotic cutter. 

Brick sewer prior to lining 

Brick sewer post lining 

 

 

 

UV Pipe Lining vehicle 


Drainage Asset Surveys 

Drainage Asset Surveys: 

• A large fleet of CCTV vehicles equipped 

with Pearpoint mainline pan, tilt and 

zoom cameras 

• High quality surveys, professionally 

processed presented in a variety of formats 

to suit client needs. Wincan 7 and 8 / 

HADDMS / AutoCAD 

• Dedicated team of CCTV report writers and 

AutoCAD technicians 

Applications: 

• 75mm to 2000mm pipes/Culverts 

• In pipes and culverts with high water 

levels the CCTV equipment is installed 

on a raft system. 

• EX-rated CCTV unit used in potentially 

explosive environments 

• Culverted watercourse inspections using 

our steerable CCTV cameras 

• Asset Surveys including Manhole and 

Pipe Surveys 

• Drainage Connectivity Surveys 

• Drainage Mapping 

• HADDMS Surveys (Highways Agency 

Drainage Data Management System) 

CCTV Vehicle 

AutoCAD drawing of highway drainage produced from onsite asset 

surveys, CCTV Vehicle GPS readings, annotated drainage plans and CCTV surveys 


UVDB 

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Andidrain Brochure

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