question: Where does all the dirt from power washing go?
comment: It's floating in the water kicked off by the power washer. It then usually flows with the water down into the drain.
passages: It is mentioned in the film "Withnail & I" by the character Uncle Monty. "I often wonder where Norman is now. Probably wintering with his mother in Guildford. A cat and rain. Vim under the sink and both bars on. But old now. Old. There can be no true beauty without decay."
   There are some considerations when using the "power wash" process in that comparatively high horsepower, thus high-current motors requiring an adequate power source, are utilized with correspondingly high washing pressures that require the parts to be adequately secured to the turntable. The "jet spray" process is found to be adequate for cleaning applications that do not involve removal of difficult soils but in general the power wash process is the superior cleaning process.
  
  Section::::Power density.
   Section::::Common uses of electricity.
  
  Electricity is used for lighting, heating, cooling, electric motors and electronic equipment. The US Energy Information Administration (EIA) has published:
  
  Estimated US residential electricity consumption by end use, for the year 2016
   The final section of the show has Aggie and Kim unveiling the freshly cleaned home to the resident. In earlier episodes, Kim and Aggie would return to the home several weeks later to see if the cleaning was being maintained.
   Typically, the oil layer is skimmed off and subsequently re-processed or disposed of, and the bottom sediment layer is removed by a chain and flight scraper (or similar device) and a sludge pump. The water layer is sent to further treatment for additional removal of any residual oil and then to some type of biological treatment unit for removal of undesirable dissolved chemical compounds.
   Sewage arrives at the works through the three trunk sewers, which are deep underground. The effluent is therefore pumped up to the inlet works, where debris such as cloth, paper and plastic is removed. It is washed and dumped into skips, to be taken to a landfill site. Grit is also removed and washed. Some is recycled as a building material, and some goes to landfill. In storm conditions, when the incoming flow exceeds the capacity of the works, some of the sewage is passed through separate storm screens, which perform a similar process, and is stored in storm tanks until the flows reduce, and the contents of the tanks can be processed by the works.
   One of the main advantages of energy generation on site is the less stringent dependence from the electricity grid and the cost mitigation associated with it. Depending on the level of renewable energy generation, wastewater treatment plants can disconnect from the main grid when the electricity is the most expensive, usually during peak hours and simply avoid the more elevated price of these periods. When feed in tariffs are in place, wastewater treatment plants can sell electricity to the grid and reduce costs through the cost recovery of the sold energy. In some cases, energy utilities offer demand response programs, in which a wastewater utility is given a financial incentive if it disconnects when requested by the energy utility. This helps the energy utilities to mitigate energy peak demands reducing the risks of blackout, and it is source of revenue for the wastewater utilities.
   Section::::Operations.:Ash removal.
   Section::::Electricity.:Consumption.
  
  Electricity consumption data in this section is based upon data mined from US DOE Energy Information Administration/Electric Power Annual 2017 files In 2017, the total US consumption of electricity was . Consumption was essentially down from 2016 with a reduction of or 1.0% drop. This is broken down as:
  
  BULLET::::- Residential customers (132.58 million) directly consumed or 37.03% of the total. This was down (-2.3%) from 2016. An average residential customer used per month, and with the average US residential cost of , the average monthly electrical bill would be $111.70, down slightly from 2016.
   When utility power returns for a minimum time, the transfer switch will transfer the house back to utility power and command the generator to turn off, after another specified amount of "cool down" time with no load on the generator.
   The baghouse has a fine filter that collects the ash particles, electrostatic precipitators use an electric field to trap ash particles on high-voltage plates, and cyclone collectors use centrifugal force to trap particles to the walls. A recent study indicates that sulfur emissions from fossil fueled power stations in China may have caused a 10-year lull in global warming (1998-2008).
  
  Section::::Environmental impacts.:Wastewater.
   In March 2013, Californian Simona Wilson won a $4 million lawsuit against her power company after stray voltage from a substation near her house repeatedly shocked her and members of her family whenever they were in the shower.
  
  Section::::Effects.
  
  Section::::Effects.:Persons.
   Cleaning events can either be rapid, such as overnight, or over many days where solar power slowly goes up. For example, with the MER-A "Spirit" rover, on 18 and 28 April 2009, the power output of the solar arrays was increased by cleaning events. The power output of "Spirit's" solar arrays increased from 223 watt-hours per day on 31 March 2009 to 372 watt-hours per day on 29 April 2009. "Spirit" had experienced multiple cleaning events during its operation that aided in its mission extension. However, the lack of cleaning events was noted as a factor in its demise.
   Fuel oils and other liquid fuels are only a minor fuel used in Michigan for power generation. Some units burn liquid fuel only while some multiple fuel units sometimes use liquid fuels as well. 
  
  Former plants
  
  Section::::Multiple fuel.
  
  Multiple fuel units may alter their fuel source depending to balance pricing, availability, and energy content.
  
  Section::::Municipal solid waste.
  
  Waste to energy plants which use garbage to produce power are a minor source of Michigan's electricity.
  
  Former plants:
  
  Section::::Landfill gas.
   Until 2009, the station had two operating furnace lines, which together were capable of burning a total of 250,000 tonnes of waste per year, and generated 20 MW of electricity. However, in May 2009 a third line was brought into operation. The plant currently burns 360,000 tonnes of waste a year and generates 29.2 MW of electricity. This is enough electricity to power 60,000 homes.
   As for milking parlour waste (see above).
  
  Section::::Point source pollution.:Vegetable washing water.
  
  Washing of vegetables produces large volumes of water contaminated by soil and vegetable pieces. Low levels of pesticides used to treat the vegetables may also be present together with moderate levels of disinfectants such as chlorine.
  
  BULLET::::- Treatment
  
  Most vegetable washing waters are extensively recycled with the solids removed by settlement and filtration. The recovered soil can be returned to the land.
  
  Section::::Point source pollution.:Firewater.
   Section::::Wash cycles.:Washing.
  
  Many front loading machines have internal electrical heating elements to heat the wash water, to near boiling if desired. The rate of chemical cleaning action of the detergent and other laundry chemicals increases greatly with temperature, in accordance with the Arrhenius equation. Washing machines with internal heaters can use special detergents formulated to release different chemical ingredients at different temperatures, allowing different type of stains and soils to be cleaned from the clothes as the wash water is heated up by the electrical heater.
   For cost reducing resource efficiency, distinguishing between direct and indirect effects is shown in Figure 1 below. The horizontal axis shows units of consumption of the targets good (which could be for example clothes washing, and measured in terms of kilograms of clean clothes) with consumption of all other goods and services on the vertical axis. An economical technology change that enables each unit of washing to be produced with less electricity results in a reduction of the price per unit of washing. This shifts the household budget line rightwards. The result is a substitution effect because of the decreased relative price, but also an income effect due to the increased real income. The substitution effect increases consumption of washing from Q1 to QS, and the income effect from QS to Q2. The total increase in consumption of washing from Q1 to Q2 and the resulting increase in electricity consumption is the direct effect. The indirect effect comprises the increase in other consumption, from O1 to O2. The scale of each of these effects depends on the elasticity of demand for each of the goods, and the embodied resource or externality associated with each good. Indirect effects are difficult to measure empirically. In the manufacturing sector, it has been estimated that there is about a 24% rebound effect due to increases in fuel efficiency. A parallel effect will happen for cost saving efficient technologies for producers, where output and substitution effects will occur.
   Many truckmount manufacturers are making environmental improvements such as LPG conversions or changes to make the machines use less petrol or diesel which makes them more environmentally friendly
  
  Most carpet manufacturers recommend a regular cleaning by hot water extraction, which is the method for carpet cleaning that is employed by truckmount carpet cleaners.
  
  Section::::Main components of a truckmount.
  
  A petrol or diesel fueled engine powers a high pressure pump and vacuum blower by direct drive.
   BULLET::::- 11% was from local groundwater, a resource that is actively managed and allocated, but is continually being threatened by chemical pollutants, such as MTBE and perchlorates;
  
  BULLET::::- 1% came from recycled water and was used for irrigation, recreation, and industrial purposes.
  
  The use of water from specific sources can vary greatly from year to year.
   In conventional secondary treatment processes, most of the electricity is used for aeration, pumping systems and equipment for the dewatering and drying of sewage sludge. Advanced wastewater treatment plants, e.g. for nutrient removal, require more energy than plants that only achieve primary or secondary treatment.
  
  Section::::Sludge treatment and disposal.
   During the cleaning, Aggie takes swab samples from the filthiest areas of the house and has them analysed in a lab, often revealing numerous kinds of bacteria, frequently "E. coli" or "Salmonella". Residents of the homes often have health problems that directly stem from the air quality or pathogens present before cleaning; Aggie will show the residents her findings in an effort to make them understand the connection between their health and their home's condition.
   The treatment process first involves boiling the sewage sludge, during which water vapour is boiled off and recovered. A dry sludge is left behind which is then combusted as fuel to heat a boiler. This boiler produces steam and the heat necessary for the boiling process. The steam is then used to generate electrical energy. Some of this electrical energy is used for the final water reverse osmosis purification stages to produce safe drinking water, and to power ancillary pumps, fans and motors.
   BULLET::::3. After deposition, the object is normally rinsed to remove the undeposited bath. The rinsing process may utilize an ultrafilter to dewater a portion of the bath from the coating vessel to be used as rinse material. If an ultrafilter is used, all of the rinsed off materials can be returned to the coating vessel, allowing for high utilization efficiency of the coating materials, as well as reducing the amount of waste discharged into the environment.
   Fossil-fuel power stations, particularly coal-fired plants, are a major source of industrial wastewater. Wastewater streams include flue-gas desulfurization, fly ash, bottom ash and flue gas mercury control. Plants with air pollution controls such as wet scrubbers typically transfer the captured pollutants to the wastewater stream.
  