Textile effluents dbt meeting 16.1.2006

Characterization and treatment of textile chemical processing effluents R.B.Chavan Department of Textile Technology Indian Institute of Technology Hauz-Khas, New Delhi 110016 E-mail rbchavan@hotmail.com

Environment pollution in India ,[object Object],[object Object],[object Object],[object Object]

Environment pollution in India ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Water consumption in textile industry ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Characteristics of textile effluents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Methods resolving effluent problems ,[object Object],[object Object],[object Object],[object Object],[object Object]

Methods resolving effluent problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tolerance limits for industrial effluents Absent Absent Absent Absent Pesticides mg/l 5 - - 2 Sulphides mg/l 15 - 15 5 Zinc mg/l 3 - 3 3 Copper mg/l 1.0 - 2 0.1 Hexavalent chromium mg/l 250 - - 250 COD 100 100 350 30 BOD (5 days ) 20 10 20 10 Oil and grease mg/l 45 - 45 40 Temperature 0C Max. 5.5-9 5.5-9 5.5-9 5.5-9 pH - 2100 2100 2100 Dissolved solids (TDS, mg/l m - 200 600 100 Suspended solids (mg/l ) Colourless Colourless Colourless Colourless Colour and odour Into marine Coastal areas On land for irrigation Into public sewer Into inland surface water Characteristics

Effects of effluent disposal ,[object Object],[object Object],[object Object],[object Object],[object Object]

Effects of effluent disposal ,[object Object],[object Object],[object Object]

Steps involved in effluent treatment ,[object Object],[object Object],[object Object]

Primary treatment ,[object Object],[object Object]

Secondary treatment ,[object Object],[object Object],[object Object],[object Object],[object Object]

Common effluent treatment plants ,[object Object],[object Object],[object Object],[object Object]

Tertiary treatment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Criticism of Reverse osmosis ,[object Object],[object Object],[object Object],[object Object],[object Object]

Circumstances under which reverse osmosis can be used economically and efficiently ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RO of Rinsed water from dyeing

Other alternatives for RO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adsorption on activated carbon bed

Waste minimization ,[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages of cleaner production ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages of cleaner production ,[object Object],[object Object],[object Object],[object Object]

Pollution prevention ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pollution prevention ,[object Object],[object Object],[object Object],[object Object],[object Object]

Pollution prevention Strategy ,[object Object],[object Object],[object Object]

Pollution prevention Strategy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pollution prevention Strategy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pollution prevention Strategy ,[object Object],[object Object],[object Object],[object Object]

Reducing Chemical Consumption ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Water conservation in silk processing ,[object Object],[object Object],[object Object],[object Object]

Degumming Methods ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dyeing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

Reduction of water consumption Wash Wash Degumming

Reduction of water consumption Exhaust dyeing Rinse Rinse Rinse Recycle for rinsing subsequent dyeing

Textile effluents dbt meeting 16.1.2006

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Ähnlich wie Textile effluents dbt meeting 16.1.2006

Ähnlich wie Textile effluents dbt meeting 16.1.2006 (20)

Mehr von Adane Nega

Mehr von Adane Nega (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Textile effluents dbt meeting 16.1.2006