Deep Cleaning
Cleaning occurs in various commercial, domestic, personal, and environmental contexts, which differ in scale and requirements.
Commercial cleaning, in business or other commercial settings
Terminal cleaning, in healthcare settings
Environmental remediation, the removal of pollution or contaminants from the natural environment
Housekeeping, including spring cleaning
Hygiene, including personal grooming
Methods
A shop assistant washing a shop window in Jyväskylä, Finland in the 1960s.
Cleaning is broadly achieved through mechanical action and/or solvent action; many methods rely on both processes.
Washing, usually done with water and often some kind of soap or detergent
Pressure washing, using a high-pressure stream of water
Wet cleaning, methods of professional laundering that avoid the use of chemical solvents
Abrasive blasting, typically used to remove bulk material from a surface, may be used to remove contaminants as well
Acoustic cleaning, the use of sound waves to shake particulates loose from surfaces
Ultrasonic cleaning, using ultrasound, usually from 20–400 kHz
Megasonic cleaning, a gentler mechanism than ultrasonic cleaning, used in wafer, medical implant, and industrial part cleaning
Carbon dioxide cleaning, a family of methods for parts cleaning and sterilization using carbon dioxide in its various phases
Dry cleaning of clothing and textiles, using a chemical solvent other than water
Flame cleaning of structural steel, with an oxyacetylene flame
Green cleaning, using environmentally friendly methods and products
Plasma cleaning, using energetic plasma or dielectric barrier discharge plasma created from various gases
Sputter cleaning, performed in a vacuum by using physical sputtering of the surface
Steam cleaning, in both domestic and industrial contexts
Thermal cleaning, in industrial settings, involving pyrolysis and oxidation
Ultraviolet germicidal irradiation, which destroys microorganisms; used extensively in the medical and food industries
Cleaning by item
Some items and materials require specialized cleaning techniques, due to their shape, size, location, or the material properties of the object and contaminants.
Buildings and infrastructure
Beach cleaning
Carpet cleaning
Chimney cleaning
Crime scene cleanup
Exterior cleaning
Floor cleaning
Graffiti removal
Roof cleaning
Silo cleaning
Street cleaning
Other items
Coin cleaning
Jewellery cleaning
Laundry, the washing of clothes and other textiles
Parts cleaning, in industry
Pot washing, in food service
Teeth cleaning
Tube cleaning
Northampton /nɔːrˈθæmptən/ (About this soundlisten) is a large market town and the county town of Northamptonshire in the East Midlands of England. It lies on the River Nene, 60 miles (97 km) north-west of London and 50 miles (80 km) south-east of Birmingham.[2][3] One of the largest towns (as opposed to cities) in England,[4] it had a population of 212,100 at the 2011 census (223,000 est. 2019).
Archaeological evidence of settlement in the area dates to the Bronze Age, Romans and Anglo-Saxons. In the Middle Ages, the town rose to national significance with the establishment of Northampton Castle, an occasional royal residence which regularly hosted the Parliament of England. Medieval Northampton had many churches, monasteries and the University of Northampton, all enclosed by the town walls. It was granted a town charter by Richard I in 1189 and a mayor was appointed by King John in 1215. The town was also the site of two medieval battles, in 1264 and 1460.
Northampton supported the Parliamentary Roundheads in the English Civil War, and Charles II ordered the destruction of the town walls and most of the castle. The Great Fire of Northampton in 1675 destroyed much of the town. It was soon rebuilt and grew rapidly with the industrial development of the 18th century. Northampton continued to grow with the arrival of the Grand Union Canal and the railways in the 19th century, becoming a centre for footwear and leather manufacture.
Northampton's growth was limited until it was designated as a New Town in 1968, accelerating development in the town. It unsuccessfully applied for city status in 2000.[5]