ANALYSIS OF DRINKING-WATER Erasmus+ project ONE DROP FOR THE LIFE.

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Presentation transcript:

ANALYSIS OF DRINKING-WATER Erasmus+ project ONE DROP FOR THE LIFE

Project participants (students and teachers)had to fill in a questionnaire and indicate: Where the drinking water is supplied from. What the drinking water is used for. If there is any shortage of drinking water. (regular supply / seasonable). The price of 1m³ water. How much water every family consume per month and how much of consumed water falls to every family member. If there are any possibilities to reduce the consumption of water and how.

Analysis of questionnaires The biggest number of respondents get centralized water supply. Water is supplied from: Vičiūnai watering place – 11; Kleboniškis – 2; Eiguliai -2; Vaišvydava – 1; Petrašiūnai – 1; Noreikiškes neighbourhood -1; Local water pump. Most of participants use water only for drinking and households. 8 – watering garden, lawn and etc. Only 4 from 8 respondents indicated that families have a separate water meter to figure out water for watering plants. Approximately one person consume: 2-3 m³ - 12 families, 3-4 m³- 5, ir >nei 5 m³ - 2 families.

Analysis of questionnaires Most students and teachers indicated that there are possibilities to reduce the consumption of water: Reduce the volume of water running from a tap. Take showers instead of having baths. Take shorter showers. Install water-saving shower heads. Use a dishwasher instead of washing dishes by hand. Use high-efficiency laundry detergents. Collect rainwater for watering the garden. Only 2 families indicated that this moment there are no possibilities to reduce the consumption of water at home.

Conclusion After discussions on the results of questionnaires it was decided to talk to parents and other family members, share the results and to assume obligations to reduce the consumption of water in the most suitable way. The aim is to achieve better results in the next questionnaire.

Chemical analysis

In the school laboratory Results of pH analysis. The results of all samples were very similar: pH - 6,5 – 7. The pH of one sample of water was 7 and 1 -<6. Students analied the amount of NO ₂ and NO ₃ in our drinking water: a small amount of NO ₂ was observed in 4 samples, and NO ₃ - in 5 samples. Although one of water samples had a bigger amount (supplied from a local well), water from our homes is suitable to drink.

Analysis of water in the laboratory of ASU with specific instruments and reagents: Results of pH analysis was similar though more precise. Analysis of concentration of mineral substances showed that most samples of water had similar concentration – above 500. Three samples of water had a bigger concentration - from 700 to 940. With the help of spectrophotometer it was assessed the amount of nitrate and phosphate in the water: 5 samples had marks of PO ₄ and 4 – a small amount of NO ₃.

Comparison of analysis at school and ASU

Analysis of NO2 and PO4 in the laboratory of ASU

Conclusion Analysed water is suitable for drinking and daily living needs.

Comments Not all samples of water from students homes ws analysed in the ASU laboratory. Analysis in the school laboratory showed that water from the same watering-places is of similar quality.