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The construction and application of a membrane bioreactors in the demonstration facility cost nearly $17 million dollars and the total cost of building the full-scale program will be $3.4 billion, resulting in an annual operation cost of $129 million, and water cost of $1,830 per acre-foot. [19]
Marionette lines (melomental folds) are long vertical lines that laterally circumscribe the chin. [1] They are important landmarks for the general impression of the face. Marionette lines appear with advancing age, but some people never get them, depending on facial structure and anatomy.
The decision to build a combined sewer system or two separate systems is mainly based on the need for sewage treatment and the cost of providing treatment during heavy rain events. Many cities with combined sewer systems built their systems prior to installing sewage treatment plants, and have not subsequently replaced those sewer systems. [2]
In 1943, the 32nd Street treatment plant was opened, and in 1948, the capacity of this plant was increased to 40 million gallons per day (MGD). A few years later, San Diego Bay was quarantined due to illness and in 1959 the city council approved the metro-sewage system and the Point Loma Wastewater Treatment Plant.
The plant is the largest sewage treatment facility in the Los Angeles Metropolitan Area and one of the largest plants in the world. Hyperion is operated by the City of Los Angeles, Department of Public Works, and the Bureau of Sanitation. Hyperion is the largest sewage plant by volume west of the Mississippi River. [1]
The nasolabial folds, commonly known as "smile lines" [1] or "laugh lines", [2] [self-published source] are facial features. They are the two skin folds that run from each side of the nose to the corners of the mouth. They are defined by facial structures that support the buccal fat pad. [3] They separate the cheeks from the upper lip.
The International Wastewater Treatment Plant (IWTP) was developed by the International Boundary and Water Commission (IBWC) in the South Bay area of San Diego, California. [1] Construction began on a 75-acre site (30 ha), west of San Ysidro in the Tijuana River Valley. The project, authorized by the U.S. Congress in 1989 and formally agreed ...
Growth arrest lines, also known as Harris lines, are lines of increased bone density that represent the position of the growth plate at the time of insult to the organism and formed on long bones due to growth arrest. They are only visible by radiograph or in cross-section. The age at which the lines were formed can be estimated from a radiograph.