Car wash water recycling system

The high rate of transportation and vehicle washing centers led to an increase in water consumption. When the water consumption increase, the amount of wastewater discharged and the cost of utility will also increase. Only the right technique used for washing the vehicles can minimize the amount of water consumption. Conservation of water will not only save the water supply, but it will also help in financial savings. Recycling and reusing the water from the car wash means collecting, processing, and treating the contaminated water to remove the dirt and contaminants and using the treated water again for car washing. As cars body always stained with dirt and dust while driving, some dirt such as small stones might stuck and penetrate into the wheels and caused major damage. Thus, a regular car wash usually is needed for every vehicle to avoid this problem. Moreover, getting a regular car wash can also improve car performance. Hence, periodically car washing is one of the best ways to preserve and maintain the performance of vehicles

Physical/chemical closed-loop water-recycling

Water needs, water sources, and means for recycling water are examined in terms appropriate to the water quality requirements of a small crew and spacecraft intended for long duration exploration missions. Inorganic, organic, and biological hazards are estimated for waste water sources. Sensitivities to these hazards for human uses are estimated. The water recycling processes considered are humidity condensation, carbon dioxide reduction, waste oxidation, distillation, reverse osmosis, pervaporation, electrodialysis, ion exchange, carbon sorption, and electrochemical oxidation. Limitations and applications of these processes are evaluated in terms of water quality objectives. Computerized simulation of some of these chemical processes is examined. Recommendations are made for development of new water recycling technology and improvement of existing technology for near term application to life support systems for humans in space. The technological developments are equally applicable to water needs on Earth, in regions where extensive water recycling is needed or where advanced water treatment is essential to meet EPA health standards

Public perceptions of recycled water: a survey of visitors to the London 2012 Olympic Park

The Old Ford Water Recycling Plant, operated by Thames Water, was used to supply non-potable recycled blackwater to some of the venues at the London 2012 Games. In an effort to learn from this experience, Thames Water commissioned a survey of visitors to the Olympic Park during the Games to explore public responses to the water recycling project. Results show a very high level of support for using non-potable recycled blackwater, both in public venues and in homes. Such findings may indicate a growing receptivity towards this technology, and show that Thames Water (and other private water companies) are well placed to encourage and even lead public discussion around the role of water reuse in the future of urban water supplies

Technology development for lunar base water recycling

This paper will review previous and ongoing work in aerospace water recycling and identify research activities required to support development of a lunar base. The development of a water recycle system for use in the life support systems envisioned for a lunar base will require considerable research work. A review of previous work on aerospace water recycle systems indicates that more efficient physical and chemical processes are needed to reduce expendable and power requirements. Development work on biological processes that can be applied to microgravity and lunar environments also needs to be initiated. Biological processes are inherently more efficient than physical and chemical processes and may be used to minimize resupply and waste disposal requirements. Processes for recovering and recycling nutrients such as nitrogen, phosphorus, and sulfur also need to be developed to support plant growth units. The development of efficient water quality monitors to be used for process control and environmental monitoring also needs to be initiated

Spill-water recycling

Spill-water recyclin

Part 2: Water Recycling Technical Report for Direct Non-Potable Use

This Water Recycling Technical Report examines the legal frameworks that affect water recycling in Texas. The goal of this report is to provide insight into the legal and regulatory barriers, challenges, and opportunities for these technologies to go online. Each water recycling implementation site has to find ways of complying with various laws and regulations. The information in this Report comes from the study of water recycling facilities currently operating in Texas, as well as extensive research into available literature and documents from various agencies. While there is no updated “one-stop-shop” resource that provides detailed information on all the necessary permits to build, operate, and maintain such facilities, this Technical Report aims to compile the existing, available information in an organized and accessible fashion. The Water Recycling Technical Report is the second of three reports that make up the work product of a project undertaken by students at Texas A&M University School of Law in a select capstone seminar. These reports examine regulations surrounding desalination and water recycling. The companion report entitled Brackish Groundwater Desalination Technical Report highlights building, operating, and monitoring requirements for desalination facilities in Texas. Finally, the Case Study Report expands on regulations in San Antonio and El Paso where these water alternatives are in place

Part 3: Case Study Appendices to the Technical Reports

This Case Study Appendix to the Technical Reports expands on regulations in San Antonio and El Paso where these water alternatives are in place. The goal of this report is to provide insight into the legal and regulatory barriers, challenges, and opportunities for these technologies to go online. Each desalination and water recycling faciality implementation site must comply with various laws and regulations. The information in these Case Studies comes from the study of brackish groundwater desalination and water recycling facilities currently operating in Texas. While there is no updated “one-stop-shop” resource where a municipal leader can find a list of all the necessary permits to build, operate, and maintain such facilities, this Technical Report aims to compile the existing, available information in an organized and accessible fashion. The Desalination Technical report is the third in a series of three reports which make up the Project. These reports examine regulations surrounding desalination and water recycling. The companion reports generally highlight building, operating, and monitoring requirements for water recycling facilities in Texas

Controlled Ecological Life Support System: Use of Higher Plants

Results of two workshops concerning the use of higher plants in Controlled Ecological Life Support Systems (CELSS) are summarized. Criteria for plant selection were identified from these categories: food production, nutrition, oxygen production and carbon dioxide utilization, water recycling, waste recycling, and other morphological and physiological considerations. Types of plant species suitable for use in CELSS, growing procedures, and research priorities were recommended. Also included are productivity values for selected plant species

Efficient Water Recycling Through Solar Distillation

The supply of clean water that can be used to meet human demands is very limited, where only less than one percent is available. Water scarcity faced by several countries in the world such as in Saudi Arabia, African countries and India has become worse each year due to the impacts of global warming thus limiting the clean water supply for their domestic use. The use of oil/diesel generators to purify and recycle used water or brackish water is very expensive and non-environment friendly; hence a need of developing a renewable energy water recycling method is to be addressed, as such provided by this project. A pyramid shape cascade solar still model is chosen from the several conceptual designs proposed. This model is the result of improvement of the previous designs to create a better efficiency model. In this project, experiments and CFD simulations are conducted to determine the highest rate of fresh water production yielded by the solar still. The experiment is conducted by using pre-heated tap water via solar heaters to increase the inlet water temperature that promotes efficiency of fresh water production from the solar still. From the experiment, a maximum rate of fresh water production of 0.47 kg/m2.hr is yielded which results a significant 57% increase in productivity when compared to a single slope cascade solar still model and 27% increase compared with an inclined solar still model. From the CFD simulation, the maximum rate of fresh water production predicted is 0.51 kg/m2.hr. The CFD simulation predictions and the experimental results are agreeable with a percentage deviation ranging from 7.8% – 15.7% by comparing the rate of fresh water production from both types of analysis