Wastewater management plant,
Australia. Wastewater management consists of collection,
wastewater treatment (be it municipal or
industrial wastewater), disposal or reuse of treated wastewater. The latter is also referred to as
water reclamation. Sanitation systems in urban areas of developed countries usually consist of the collection of
wastewater in gravity driven sewers, its treatment in
wastewater treatment plants for
reuse or disposal in rivers, lakes or the sea. In
developing countries most wastewater is still discharged untreated into the environment. Alternatives to centralized sewer systems include
onsite sanitation,
decentralized wastewater systems,
dry toilets connected to
fecal sludge management.
Stormwater drainage Sewers are either combined with
storm drains or separated from them as
sanitary sewers.
Combined sewers are usually found in the central, older parts or urban areas. Heavy
rainfall and inadequate maintenance can lead to combined sewer overflows or
sanitary sewer overflows, i.e., more or less diluted raw
sewage being discharged into the environment. Industries often discharge wastewater into municipal sewers, which can complicate wastewater treatment unless industries pre-treat their discharges.
Solid waste disposal ,
Israel. Disposal of
solid waste is most commonly conducted in
landfills, but incineration,
recycling,
composting and conversion to
biofuels are also avenues. In the case of landfills,
advanced countries typically have rigid protocols for
daily cover with topsoil, where
underdeveloped countries customarily rely upon less stringent protocols. The importance of daily cover lies in the reduction of vector contact and spreading of
pathogens. Daily cover also minimizes odor emissions and reduces windblown litter. Likewise, developed countries typically have requirements for perimeter sealing of the landfill with clay-type soils to minimize migration of
leachate that could contaminate
groundwater (and hence jeopardize some
drinking water supplies). For incineration options, the release of
air pollutants, including certain
toxic components is an attendant adverse outcome. Recycling and biofuel conversion are the
sustainable options that generally have superior lifecycle costs, particularly when total
ecological consequences are considered. Composting value will ultimately be limited by the market demand for compost product.
Food safety food preparation area. Sanitation within the food industry means the adequate treatment of food-contact surfaces by a process that is effective in destroying vegetative cells of
microorganisms of
public health significance, and in substantially reducing numbers of other undesirable microorganisms, but without adversely affecting the food or its safety for the consumer (
U.S. Food and Drug Administration,
Code of Federal Regulations, 21CFR110, USA).
Sanitation Standard Operating Procedures are mandatory for food industries in
United States. Similarly, in Japan, food hygiene has to be achieved through compliance with food sanitation law. In the food and
biopharmaceutical industries, the term "sanitary equipment" means equipment that is fully cleanable using
clean-in-place (CIP) and sterilization-in-place (SIP) procedures: that is fully drainable from cleaning solutions and other
liquids. The design should have a minimum amount of deadleg, or areas where the
turbulence during cleaning is insufficient to remove product deposits. In general, to improve cleanability, this equipment is made from
Stainless Steel 316L, (an
alloy containing small amounts of
molybdenum). The surface is usually
electropolished to an effective surface roughness of less than 0.5
micrometre to reduce the possibility of
bacterial adhesion.
Hygiene promotion ) in
Afghanistan In many settings, provision of sanitation facilities alone does not guarantee good health of the population. Studies have suggested that the impact of hygiene practices have as great an impact on sanitation related diseases as the actual provision of sanitation facilities. Hygiene promotion is therefore an important part of sanitation and is usually key in maintaining good health. Hygiene promotion is a planned approach of enabling people to act and change their behavior in an order to reduce and/or prevent incidences of
water, sanitation and hygiene (
WASH) related diseases. It usually involves a participatory approach of engaging people to take responsibility of WASH services and infrastructure including its operation and maintenance. The three key elements of promoting hygiene are; mutual sharing of information and knowledge, the mobilization of affected communities and the provision of essential material and facilities. == Health aspects ==