Recycled water treatment processes
... The water is disinfected by chlorination and/or ultra violet light, depending on the end use. ...
... The water is disinfected by chlorination and/or ultra violet light, depending on the end use. ...
Produced Water Treatment
... • It may also contain some corrosion products. • May contain radioactive minerals • VOCs ...
... • It may also contain some corrosion products. • May contain radioactive minerals • VOCs ...
Summary of City of Flint (City) Actions In Response to the
... Summary of City of Flint (City) Actions In Response to the EPA Emergency Administrative Order Updated: February 12, 2016 Chapter 57 & 58: Adequate Demonstration that chlorine residual is being maintained in the distribution system. EPA Order Due Date: Monthly The City continues to monitor chlorine r ...
... Summary of City of Flint (City) Actions In Response to the EPA Emergency Administrative Order Updated: February 12, 2016 Chapter 57 & 58: Adequate Demonstration that chlorine residual is being maintained in the distribution system. EPA Order Due Date: Monthly The City continues to monitor chlorine r ...
Water Treatment 2
... • When the raw water source is a river and a bar rack is used, the rack is usually oriented to take advantage of the hydraulics of the river to keep the rack cleaned. • Although trash racks have little effect on turbidity, they do serve an important function in keeping large solids out of the treatm ...
... • When the raw water source is a river and a bar rack is used, the rack is usually oriented to take advantage of the hydraulics of the river to keep the rack cleaned. • Although trash racks have little effect on turbidity, they do serve an important function in keeping large solids out of the treatm ...
Review PPT
... C. Decomposition Zone • DECOMPOSITION increases to break down pollution • OXYGEN decreases as it is used up by decomposers D. Septic zone – DEAD ZONE - Hypoxic • dissolved oxygen levels are very low and very few species can survive E. Recovery Zone • Waste concentrations decrease • DO , BOD F. Cl ...
... C. Decomposition Zone • DECOMPOSITION increases to break down pollution • OXYGEN decreases as it is used up by decomposers D. Septic zone – DEAD ZONE - Hypoxic • dissolved oxygen levels are very low and very few species can survive E. Recovery Zone • Waste concentrations decrease • DO , BOD F. Cl ...
water quality terms
... A stationary location or specific facility from which pollutants are discharged. -Salinity The saltiness or dissolved salt content of water. Freshwater plant and animal species typically do not tolerate high salinity. Increasing salinisation is a water-quality problem, which can be impacted by agric ...
... A stationary location or specific facility from which pollutants are discharged. -Salinity The saltiness or dissolved salt content of water. Freshwater plant and animal species typically do not tolerate high salinity. Increasing salinisation is a water-quality problem, which can be impacted by agric ...
Insert Correct Date
... concentration of 0.7 mg/L to assist the reduction of dental caries. 7 to 13 ...
... concentration of 0.7 mg/L to assist the reduction of dental caries. 7 to 13 ...
No Slide Title
... •Wastewater sent to plant through sanitary sewer pipes •Pre-treatment - bar screen removes debris •Primary 1: settling tank- (removes grit), 2: clarifier- (lets sludge settle while oil is removed by use of a skimmer) •Secondary - 1: aeration tank -(colloids & organics removed by hungry bacteria -aer ...
... •Wastewater sent to plant through sanitary sewer pipes •Pre-treatment - bar screen removes debris •Primary 1: settling tank- (removes grit), 2: clarifier- (lets sludge settle while oil is removed by use of a skimmer) •Secondary - 1: aeration tank -(colloids & organics removed by hungry bacteria -aer ...
Topic 6 :Water Quality and Management
... Soft water has less calcium and magnesium in it. Water softeners are added to make it soft Oxygen, CO2, sediments, phosphate, nitrogen, sulfur, and some other chemicals can be found dissolved in water. ...
... Soft water has less calcium and magnesium in it. Water softeners are added to make it soft Oxygen, CO2, sediments, phosphate, nitrogen, sulfur, and some other chemicals can be found dissolved in water. ...
Human Waste Disposal
... More than 500 pathogenic bacteria, viruses, and parasites can travel from human or animal excrement through water. Natural Processes ...
... More than 500 pathogenic bacteria, viruses, and parasites can travel from human or animal excrement through water. Natural Processes ...
Particulate organic material
... oxygen demand) which is defined as the amount of organic material in water, in terms of how much oxygen will be required to break it down chemically, biologically, or both. • Inorganic chemicals include heavy metals, acids, and road salts. Organic chemicals include petroleum and pesticide products. ...
... oxygen demand) which is defined as the amount of organic material in water, in terms of how much oxygen will be required to break it down chemically, biologically, or both. • Inorganic chemicals include heavy metals, acids, and road salts. Organic chemicals include petroleum and pesticide products. ...
Well Disinfection Procedure
... This handout has been prepared to tell owners of private wells how to disinfect a well that has had an unsatisfactory laboratory water report and to answer questions concerning water supplies that are often asked of the county health department. A laboratory analysis alone will not show whether or n ...
... This handout has been prepared to tell owners of private wells how to disinfect a well that has had an unsatisfactory laboratory water report and to answer questions concerning water supplies that are often asked of the county health department. A laboratory analysis alone will not show whether or n ...
Toxins removal in Water Treatment
... • Most widely used is Hypochlorous Acid (HOCl) made on site • Easily passes through cell membranes to kill bacteria, viruses, and protozoans • Cl2(g) +H2O(aq) HOCl(aq) + HCl • HCl H+ and Cl• Cl gas dangerous to store and handle ...
... • Most widely used is Hypochlorous Acid (HOCl) made on site • Easily passes through cell membranes to kill bacteria, viruses, and protozoans • Cl2(g) +H2O(aq) HOCl(aq) + HCl • HCl H+ and Cl• Cl gas dangerous to store and handle ...
Occurrence of algae and indicator bacteria in an open drinking
... the drinking water samples. Elevated levels of indicator bacteria, metals, inorganic compounds as well as a cocktail of other algae were also observed in the sludge samples. It was concluded that the filamentous algae were responsible for the clogging of the filters and had passed through the open d ...
... the drinking water samples. Elevated levels of indicator bacteria, metals, inorganic compounds as well as a cocktail of other algae were also observed in the sludge samples. It was concluded that the filamentous algae were responsible for the clogging of the filters and had passed through the open d ...
Drinking Water Treatment
... settling tanks and clarifiers 60% of suspended solids are removed in this process ...
... settling tanks and clarifiers 60% of suspended solids are removed in this process ...
Water treatment
... our homes. This normally means straining or filtering it and treating it with chemical. Water is treated for three reasons: • to make it safe to drink • to remove particles and make it clean • to remove any unpleasant taste or smell One way to treat water is to filter it twice - first through coarse ...
... our homes. This normally means straining or filtering it and treating it with chemical. Water is treated for three reasons: • to make it safe to drink • to remove particles and make it clean • to remove any unpleasant taste or smell One way to treat water is to filter it twice - first through coarse ...
Water purification
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose. Most water is disinfected for human consumption (drinking water), but water purification may also be designed for a variety of other purposes, including fulfilling the requirements of medical, pharmacological, chemical and industrial applications. The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.Purifying water may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, fungi, as well as reducing the amount of a range of dissolved and particulate material derived from the surfaces that come from runoff due to rain.The standards for drinking water quality are typically set by governments or by international standards. These standards usually include minimum and maximum concentrations of contaminants, depending on the intended purpose of water use.Visual inspection cannot determine if water is of appropriate quality. Simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all the possible contaminants that may be present in water from an unknown source. Even natural spring water – considered safe for all practical purposes in the 19th century – must now be tested before determining what kind of treatment, if any, is needed. Chemical and microbiological analysis, while expensive, are the only way to obtain the information necessary for deciding on the appropriate method of purification.According to a 2007 World Health Organization (WHO) report, 1.1 billion people lack access to an improved drinking water supply, 88 percent of the 4 billion annual cases of diarrheal disease are attributed to unsafe water and inadequate sanitation and hygiene, while 1.8 million people die from diarrheal diseases each year. The WHO estimates that 94 percent of these diarrheal cases are preventable through modifications to the environment, including access to safe water. Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, and storing it in safe containers could save a huge number of lives each year. Reducing deaths from waterborne diseases is a major public health goal in developing countries.