secondary water treatment Articles
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Beginner´s Guide to Biological Treatment of Water
Water treatment systems make safe and civilized life possible for people of all ages. Access to clean, reliable, and safe water is one of the first building blocks of a good social system. That is why experts have developed advanced and reliable ways to remove harmful substances from the water supply, including fecal matter, bacteria, arsenic, and other dangerous or even poisonous matter. One ...
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Upgrading secondary biological treatment of wastewater using anoxic/aerobic attached growth systems for effluent quality improvement
A pilot plant was constructed and operated using both Aerobic Submerged Fixed Film (ASFF) and Anoxic/Aerobic Submerged Fixed Film (A/ASFF) processes at different loading rates in the range of 0.03–0.3 g BOD.g-1 BVS.d-1 corresponding to the Hydraulic Retention Times (HRTs) in the range of 0.7 to 8 hr. The results obtained revealed that both the ASFF and the A/ASFF processes are viable options to ...
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Electrocoagulation Wastewater Treatment – An Application To Sustainably Reuse Textile Wastewater
The textile industry is a water consumption intensive industry. Water is utilized for cleaning the raw material, and for the different steps in the textile dyeing process. Due to the effects of water scarcity and stricter environmental regulations, the cost of fresh water utilization has increased worldwide. In addition, the textile industry is faced with pressure by government regulators to ...
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Textile Wastewater Treatment - An Application to Sustainably Reuse Water in the Textile Industry - Case Study
The textile industry is a water consumption intensive industry. Water is utilized for cleaning the raw material, and for the different steps in the textile dyeing process. Due to the effects of water scarcity and stricter environmental regulations, the cost of fresh water utilization has increased worldwide. In addition, the textile industry is faced with pressure by government regulators to ...
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Electrocoagulation Solutions - Technology meets needs of food & beverage wastewater treatment - Case Study
The effects of water scarcity and stricter environmental regulations placed on water usage are increasing the cost of using freshwater globally. The consequences of these increasing costs on food and beverage companies are twofold, since the companies are charged for both the water that they utilize in their processes and on their wastewater discharge. Additionally, the food and beverage ...
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Electrocoagulation Wastewater Treatment: Specialized Technology to meet the needs of food & beverage wastewater
The effects of water scarcity and stricter environmental regulations placed on water usage are increasing the cost of using freshwater globally. The consequences of these increasing costs on food and beverage companies are twofold, since the companies are charged for both the water that they utilize in their processes and on their wastewater discharge. Additionally, the food and beverage ...
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The fate and behaviour of organic micropollutants during wastewater treatment processes: a review
The fate and behaviour of selected insecticides, herbicides, and polychlorinated biphenyls during primary sedimentation and secondary biological treatment of waste water are evaluated. The physico-chemical properties (chemical structure, aqueous solubility, octanol/water partition coefficient and Henry's Law constant) of these compounds which dictate the extent and mechanism of their removal ...
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What is the Membrane Bioreactor Tank?
MBR membrane bioreactor is a new type of water treatment technology that combines membrane separation technology and activated sludge biotechnology. The MBR membrane module is placed in the membrane tank to replace the role of the secondary sedimentation tank in traditional water treatment. The treatment method is more efficient, and the effluent quality is better. In the operation of the entire ...
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Progressive Pulp Processes - Case Study
The pulp and paper industry is one of the largest industrial consumers of water resources within the U.S. and global economies. In the U.S., pulp and paper industry operations require, on average. 14.000 to 16.000 gal of water per metric ton of finished paper product. According to the Food and Agriculture Organization of the United Nations Secretariat, paper mill operations globally use up to ...
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Primary Treatment Methods for Suspended Solids in Wastewater
Primary treatment methods for suspended solids in wastewater can seem like a daunting task. Indeed, when it comes to managing and treating wastewater, one of the biggest hurdle often is… The primary treatment of suspended solids in wastewater. This is what separates an average water management system from a sustainable one. However, if you don’t know how to effectively remove ...
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Treating water from energy exploration & drilling operations - Case Study
Produced water from the extraction process of oil and gas reserves, as well as flowback water from hydraulic fracturing operations, must be properly managed in order to mitigate any environmental impacts to existing water supplies caused by the oil drilling/fracturing activities. Recent research and data indicate that the amount of produced water from these energy exploration and drilling ...
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Hospital Wastewater Treatment Process
1. The characteristics of hospital sewage Hospital waste water contains some special pollutants, such as drugs, disinfectants, diagnostic agents, detergents, and a large number of pathogenic microorganisms, parasite eggs and various viruses (such as roundworm eggs, hepatitis virus, tuberculosis and dysentery) . In addition, there are radioactive substances such as radium 226, phosphorus, gold ...
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