ABC on ETP

ABC on Effluent Treatment Plant

Common questions on ETP, B.wU.wc welqK mvavib cÖkœvejx

1| Full meaning (c~Y© bvg) of ETP: Effluent Treatment Plant, Zij eR©¨ cwi‡kvab cøv›U

2| ETP Gi cÖ‡qvRbxqZv: cwi‡ek‡K `~lYgy³ ivLv, cvwb‡Z gvQmn Ab¨vb¨ mKj cÖvYx‡`i  evwP̐‡q ivLv, b`x-Lvj-wej-Rjvk‡qi cvwb gvbyl, cïcvwLi e¨env‡ii Dc‡hvMx ivLv, K…wl Kv‡R, wkí-KiKviLvbvq e¨envi Dc‡hvMx ivLv, BZ¨vw`|

3| ETP Kq ai‡bi: 1| Chemical ETP   2| Biological ETP   3| Biochemical ETP

4| ETP ‡Z wK wK Chemical e¨envi Kiv nqt Ferrous Sulphate, Alum, Lime, Acid, Poly Aluminium Chloride (PAC), Polymer, Decolouring BZ¨vw`|

5| evsjv‡`k cwi‡ek msiÿb AvBb †g‡b Pjv: cÖ‡Z¨K d¨v±ix‡K evsjv‡`k cwi‡ek AvBb me©`v †g‡b Pj‡Z n‡e| AvBb ‡g‡b bv Pj‡j miKvi †_‡K wewfbœ c`‡ÿc MÖnY K‡i| evsjv‡`k cwi‡ek msiÿb AvBb 1997 Abyhvqx ETP Gi Outlet (AvDU‡jU) †_‡K wb¤œwjwLZ Parameter Abyhvqx cvwb wbM©gb n‡Z n‡e|

µwgK bs	Parameter	MÖnb‡hvM¨ gvbgvÎv
1	pH	6.0  - 9.0
2	TDS	m‡e©v”P  2100 milligram per Liter (mg/l)
3	DO	4.5  - 8.0    milligram per Liter ( mg/l)
4	COD	m‡e©v”P  200  milligram per Liter (mg/l)
5	BOD	m‡e©v”P  50   milligram per Liter (mg/l)
6	Ab¨vb¨ AviI

6| TDS: Full meaning(c~Y© bvg) Total Dissolved Solids, cvwb‡Z `ªexf~Z mg¯Í KwVb c`v‡_©i  cwigvb‡K TDS e‡j|

7| DO: Full meaning (c~Y© bvg) Dissolved Oxygen, cvwb‡Z `ªexf~Z Aw·‡R‡bi cwigvb‡K DO e‡j| gvQ cvwb‡Z `ªexf~Z Aw·‡Rb †_‡KB wbtk¦vm †bq|

8| COD : Full meaning(c~Y© bvg) Chemical Oxygen Demand.

9| BOD: Full meaning (c~Y© bvg) Biochemical Oxygen Demand.

10| pH: ‡Kvb `ªe‡Yi nvB‡Wªv‡Rb Avq‡bi NbgvÎvi  FYvZ¡K jMvwi`g‡K pH e‡j|

pH = - log[H⁺]

                       pH=0                                                                                                                              1     2     3     4     5      6        pH=7      8     9      10     11    12     13   pH=14                                   

                   Acid                                                        Neutral                                                 Base

pH 0 †_‡K 14 ch©šÍ n‡Z cv‡i| cvwbi ¯^vfvweK / mvavib pH  nj 7|

pH  Gi gvb 7 Gi †ekx n‡j GwmW †hvM Ki‡j pH K‡g hvq| GwmW wn‡m‡e Hydrochloric Acid A_ev Sulfuric Acid e¨envi Kiv nq|

pH  Gi gvb 7 Gi Kg  n‡j ÿvi †hvM Ki‡j pH ‡e‡o hvq| ÿvi wn‡m‡e mvavibZ Sodium hydroxide(Kvw÷K †mvWv) e¨envi Kiv nq| Acid Gi evsjv A¤ø Ges Base Gi evsjv ÿvi|

11| Dc‡iv³ 5wU Parameter †K g~j aiv nq, G¸‡jv‡KB cÖvavb¨ †`Iqv nq|| Dc‡iv³ 5wU Parameter Qvov AviI A‡bK Parameter i‡q‡Q|