Effective laundry products leading to lower chemical usage

2007 ◽  
Vol 50 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Paul Hepworth
Keyword(s):  
Laundry Products ◽  
Chemical Usage

scholarly journals TEACHING PRACTICES IN SCIENCE EDUCATION RELATED TO CHEMICAL USAGE, THEIR HAZARDS AND RISKS

2021 ◽  
Vol 17 (2) ◽  
pp. 482-483
Author(s):  
Bethanie Carney Almroth ◽  
Noomi Asker ◽  
Giedrė Ašmonaitė ◽  
Lina Birgersson ◽  
Frida Book ◽  
...  
Keyword(s):  
Science Education ◽  
Teaching Practices ◽  
Chemical Usage

Control-design methodology for drinking-water treatment processes

2010 ◽  
Vol 10 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Kim van Schagen ◽  
Luuk Rietveld ◽  
Alex Veersma ◽  
Robert Babuška
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Design Methodology ◽  
Treatment Plant ◽  
Control Design ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Process Characteristics ◽  
Chemical Usage ◽  
Treatment Step

The performance of a drinking-water treatment plant is determined by the control of the plant. To design the appropriate control system, a control-design methodology of five design steps is proposed, which takes the treatment process characteristics into account. For each design step, the necessary actions are defined. Using the methodology for the pellet-softening treatment step, a new control scheme for the pellet-softening treatment step has been designed and implemented in the full-scale plant. The implementation resulted in a chemical usage reduction of 15% and reduction in the maintenance effort for this treatment step. Corrective actions of operators are no longer necessary.

POSITIONING CONTROL PERFORMANCES OF A ROBOTIC HAND SYSTEM

2016 ◽  
Vol 79 (1) ◽  
Author(s):  
Mohamad Adzeem Mohamad Yuden ◽  
Mariam Md Ghazaly ◽  
Aliza Che Amran ◽  
Irma Wani Jamaludin ◽  
Khoo Hui Yee ◽  
...  
Keyword(s):  
Steady State ◽  
Pid Controller ◽  
Experimental Results ◽  
Robotic Hand ◽  
High Chemical ◽  
Positioning Control ◽  
Industry Sector ◽  
Hazardous Environments ◽  
Chemical Usage ◽  
Stability And Consistency

Hazardous environments such as in industry sector with high chemical usage give high risks to the safety of workers. These risks can be reduced by designing robotic hand that is able to replace human works. For the industry purpose, the robotic hand needs to have a higher performance in accuracy, stability and consistency. However, the current robotic hand in industry is not flexible, which means it cannot be used for different tasks. Therefore, a multi-purpose robotic hand was developed. In this paper, the objectives of this research are to design and develop a PID controller for improving the performances of a robotic hand system. The experimental results prove that the PID controller shows good performances with the steady state error less than 0.110 for the input reference, 300 respectively.

scholarly journals MONITORING OF THE CHEMICAL COMPOSITION OF IORI RIVER

2020 ◽  
Vol 17 (35) ◽  
pp. 346-353
Author(s):  
Ketevan KUPATADZE
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Supply ◽  
River Water ◽  
The Body ◽  
Chemical Pollution ◽  
Tumor Diseases ◽  
Laundry Products ◽  
Household Activities ◽  
Water Supply Company

The article examines the chemical pollution of the Iori River, one of the most important rivers in Georgia. In addition to Georgia, this river is found in Azerbaijan. The study of this river is crucial as LLC United Water Supply Company of Georgia organizes the water supply of big cities and villages of Georgia through Iori water. Furthermore, the population of two big villages independently uses the river water for various household activities: washing (laundry, products, dishware), livestock watering, and irrigation. They do not use it as drinking water. The water of the Iori River was monitored in two sections: village Sasadilo and village Sartichala. In total, 24 samples were taken over the course of 2018 and 2019 years. Some part of the research was conducted on the site through HI83399-02 | Water Wastewater Multiparameter (with COD) Photometer and pH meter device. These studies included pH, BOD, and the temperature was measured directly during sampling. The same device was used for measuring approximate concentrations of heavy metals. At the next stage of the study, an inhabitants survey was conducted to identify their knowledge of environmental cleanliness and safety concerns. As a result of the study, our recommendation to the population is to refrain or restrict the use of untreated river water directly in domesticities. The results of the survey showed that the population has less information about the likelihood of getting heavy metals in the body and developing tumor diseases.

scholarly journals Environmental and health impacts of spraying COVID-19 disinfectants with associated challenges

2021 ◽  
Author(s):  
Shakeel Ahmad Bhat ◽  
Farooq Sher ◽  
Rohitashw Kumar ◽  
Emina Karahmet ◽  
Syed Anam Ul Haq ◽  
...  
Keyword(s):  
International Committee ◽  
World Health ◽  
Disease Spread ◽  
Secondary Products ◽  
Global Pandemic ◽  
Specific Morphology ◽  
Application Techniques ◽  
The Usa ◽  
Health Organization ◽  
Chemical Usage

AbstractCoronavirus refers to a group of widespread viruses. The name refers to the specific morphology of these viruses because their spikes look like a crown under an electron microscope. The outbreak of coronavirus disease 2019 (COVID-19) that has been reported in Wuhan, China, in December 2019, was proclaimed an international public health emergency (PHEIC) on 30 January 2020, and on 11 March 2020, it was declared as a pandemic (World Health Organization 2020). The official name of the virus was declared by the WHO as “COVID-19 virus”, formerly known as “2019-nCoV”, or “Wuhan Coronavirus”. The International Committee on Virus Taxonomy’s Coronavirus Research Group has identified that this virus is a form of coronavirus that caused a severe outbreak of acute respiratory syndrome in 2002–2003 (SARS). As a result, the latest severe acute respiratory syndrome has been classified as a corona virus 2 (SARS-CoV-2) pathogen by this committee. This disease spread quickly across the country and the world within the first 3 months of the outbreak and became a global pandemic. To stop COVID-19 from spreading, the governing agencies used various chemicals to disinfect different commercial spaces, streets and highways. However, people used it aggressively because of panic conditions, anxiety and unconsciousness, which can have a detrimental impact on human health and the environment. Our water bodies, soil and air have been polluted by disinfectants, forming secondary products that can be poisonous and mutagenic. In the prevention and spread of COVID-19, disinfection is crucial, but disinfection should be carried out with sufficient precautions to minimize exposure to harmful by-products. In addition, to prevent inhalation, adequate personal protective equipment should be worn and chemical usage, concentrations, ventilation in the room and application techniques should be carefully considered. In the USA, 60% of respondents said they cleaned or disinfected their homes more often than they had in the previous months. In addition to the robust use of disinfection approaches to combat COVID-19, we will explore safe preventative solutions here.

Evaluation of enzymes for laundry products

1969 ◽  
Vol 46 (10) ◽  
pp. 515-519 ◽  
Author(s):  
Theodore Cayle
Keyword(s):  
Laundry Products
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