Going to say T-54/55 ARV?
Close.... it is actually a Piloted/Remote Control Firefighting Vehicle based on the T-55 MBT.
Fire Fighting Vehicle SPOT-55SPOT-55 is a special tracked fire fighting vehicle mounted on the chassis of T-55 tank manufactured at the Military Repair Corporation 025 in Nový Jičín. It is designed to fight any kind of fire in difficult terrain and in industrial conglomerations (besides forests, it can be engaged in power plants, oil refineries, surface mines or at gas pipelines).
This system has two water tanks to hold 11,000 litres. The central tank can keep 9,000 litres and the side tank up to 2,000 litres. A foam tank can contain 2000 litres of frothing agent generated within the vehicle. Moreover, it is equipped with two powder extinguishers. The front part of the vehicle is equipped with two high-pressure revolving streamlines, while three hand streamlines can be attached to the rear part of the vehicle. When engaged at a fire, the body of the vehicle is cooled by water fog driven out of numerous pressure jets on the vehicle surface.
During operation water can be re-supplied by a pump pulling from a depth of 7.5 metres. Another possible means of water supply are two water tanks connected to the rear of the vehicle or the connection of the SPOT-55 vehicle to two fire noodles or water hydrants.
The crew of two inside the vehicle is protected against heat, radioactive contamination and fallout. The vehicle is equipped with TV a system, three radio stations and a local telephone circuit. The SPOT-55, capable of being remote-controlled up to the distance of 1,500 metres, is used by rescue and fire fighter units and by some civilian fire squads.
Basic Technical Data
Maximum weight: 45,000 kg
Operation range: 170 km
Maximum speed: 50 km/h
Diesel four-stroke engine output: 425 kW
Slope/gradient climbing capability: 20 °
Fording depth: 1,400 mm
Water stream capacity: 2,270 litres per minute
Maximum distance of water stream
With water: 65 m
With foam: 50 m
There is also a company out there that makes something similar useing surpluss German LEOPARD I MBT's:
http://www.jumbofiretank.com/www_jumbo/home.htm 
P.S. Yours looks like some kind of armored mine clearing vehicle mounted on a T-72 chassis.