water treatment process

Views:
 
     
 

Presentation Description

No description available.

Comments

By: ilkerhan0626 (97 month(s) ago)

Dear sir, First of all thank you for sharing that ppt . I am working in a power plant in Turkey as mec.engineer. If possible I would like you to send that ppt file to y e-mail address. Best regards mr.ilker cetin ilker.cetin26@gmail.com

Presentation Transcript

STATUS OF GROUND WATER QUALITY AND PUBLIC HEALTH AROUND THIRUCHENGODE TALUK, TAMIL NADU, INDIA. : 

STATUS OF GROUND WATER QUALITY AND PUBLIC HEALTH AROUND THIRUCHENGODE TALUK, TAMIL NADU, INDIA. K. SURESH, A. SELVARAJ* K. JOTHIVENKATACHALAM** * DEPARTMENT OF CHEMISTRY, CBM COLLEGE, COIMBATORE. ** DEPARTMENT OF SCIENCE AND HUMANITIES, SRI KRISHNA COLLEGE OF ENGINEERING AND TECHNOLOGY, COIMBATORE, INDIA.

INTRODUCTION : 

INTRODUCTION Water plays major role in socio-economic development of human population. Ground water is expected to be less contaminated and possess high mineral content. However, today it is polluted by the constant addition of industrial water, use of fertilizers and pesticides, manure, lime, septic tank etc. Extent of pollution depends on rainfall pattern, depth of water table, distance from the source of contamination and soil properties. Water quality also depends on physical, chemical and bacterial constituents.

AIM AND SCOPE OF THE PRESENT WORK : 

AIM AND SCOPE OF THE PRESENT WORK To evaluate quality of ground water in Thiruchengode Taluk. To find means of improving the quality of ground water.

EXPERIMENTAL : 

EXPERIMENTAL 12 Ground water samples collected from different locations in Thiruchengode Taluk. Samples labelled and stored with necessary precautions. Double distilled water used for preparation of reagents and solutions. pH and electrical conductivity measured using digital meters. TDS measured using evaporation methods at 1850C. Hardness and Ca2+ are measured by EDTA titration method. Alkalinity measured by titration method. Continued…

Slide 5: 

EXPERIMENTAL Na+ and K+ measured by Flame Photometry Method. F- measured by Ion Selective Electrode Method. BOD measured by Iodometric Method. COD measured by Dichrometric Reflux Method. Cl- measured by Silver Nitrate Titrametric Method. SO42- measured by Gravimetric Method. PO43- measured by Spectro Photometric Method.

Slide 6: 

RESULTS Physico - chemical parameters obtained from different methods for untreated water samples are summarized in Table 1 Physico Chemical parameters of water samples Condt…

Slide 7: 

Physico chemical parameter of water samples

BIOMASS TREATMENT : 

BIOMASS TREATMENT Roots of the plant VETIVERIA ZIZANOIDS chosen as biomass. Biomass dried, powered and packed in column to give 5 cm thick bed. Water samples passed through column at steady and slow rate. Sample obtained during the first 20 minutes of treatment discarded. Treated water samples collected after 20 minutes are analyzed for physico - chemical parameters.

Slide 9: 

Physico chemical parameters obtained from different methods for treated water samples are summarized in Table 2. Physico chemical parameter of water samples. Condt…

Slide 10: 

Physico chemical parameter of water samples

Discussion : 

Discussion COLOUR AND ODOUR: Water is used for drinking and domestic purposes. Sample should be colourless and odourless. samples analyzed are colourless and odourless. TURBIDITY: Samples are slightly turbid, biomass treated water is not turbid. pH: pH of treated and untreated samples lies in the range 6.75-8.4. This is the safe range prescribed by WHO. Biomass alters the pH within this range. Condt…

Slide 12: 

ELECTRICAL CONDUCTIVITY (EC): EC of untreated samples lie in the range 838 – 5960 (µmho/cm). Biomass treatment decreases EC. EC lies within permissible limits. TOTAL DISSOLVED SOLIDS (TDS): TDS of untreated samples lies in the range 3000-4000 mg/L. Treated water samples have TDS value far lower than untreated samples. TOTAL ALKALINITY: The total alkalinity of untreated water samples lies in the ranges 116 – 716 mg/L. Treated water samples have alkalinity within permissible limits. Condt…

Slide 13: 

TOTAL HARDNESS: The total hardness of untreated water samples generally lies above permissible limits (136-876ppm). Biomass treatment slightly decreases these parameter. SULPHATE: The sulphate content of untreated water samples lies in the range between 62-347 mg/L. Some samples lie at border line of permissible limits. But treated water samples lie below permissible limits. CHLORIDE: The chloride content of untreated water samples ranged from 112 – 1116 mg/L. Biomass treatment decreases chloride content. Condt…

Slide 14: 

FLUORIDE: Fluoride content of untreated samples lies in the range 0.2 – 1.4 mg/L. This is the safe range prescribed by WHO. However, biomass treatment decreases the fluoride to zero. PHOSPHATE: Phosphate content of untreated samples lies in the range 1.32 – 3.52 mg/L. This is the safe range prescribed by WHO. However, biomass treatment decreases the phosphate content to allowed range. BOD and COD: BOD and COD values of untreated samples lie far above permissible limits. Biomass treatment makes BOD and COD zero.

HUMAN HEALTH EFFECTS : 

HUMAN HEALTH EFFECTS The TDS above the allowable limit may cause gastrointestinal irritation and constipation effects. Calcium content above the permissible limit in human body causes hypocalcaemia, coma and death. Magnesium content above the acceptable limit cause Nausea, Muscular weakness and paralysis. Nitrate content above the permissible limit may cause methemoglobinaemia. Sulphate content above the permissible limit may cause Diorrhoea Fluoride above the allowable limit may cause dental fluorosis and skeletal fluorosis.

pH Values Vs Sample No : 

pH Values Vs Sample No

TDS Value Vs Sample No : 

TDS Value Vs Sample No

Total Hardness Value Vs Sample No : 

Total Hardness Value Vs Sample No

Chloride Value Vs Sample No : 

Chloride Value Vs Sample No

Sulphate Value Vs Sample No : 

Sulphate Value Vs Sample No

CONCLUSIONS : 

CONCLUSIONS Except for pH, fluoride content and phosphate content all other physico - chemical parameters lie either on the higher side of permissible limit or above permissible limits. Biomass treatment with ‘VETIVERIA ZIZANOIDS’ domestically alters these parameters and brings them within permissible limits. Biomass treatment brings down BOD and COD to zero.

REFERENCES : 

REFERENCES APHA, 1989, standard methods for examination of water and wastewater (17th Edn.) Washington D.C Manivasagam. N, 1984 physico – chemical examination of water, sewage and industrial effluents, pragati prakashan, Merut.

authorStream Live Help