Salinity Intrusion and Seasonal Water Quality Variations in the Tidal ...

More documents

Recommendations

Info

February-March. Nitrate following the regular run of the canals elsewhere, peaks with the first rains. Except for the northern end, the water is saline from mid November to mid April. Hardness keeps rising until the rainy season steps In. Sewage load keeps the water alkaline throughout. 10 Chittoor puzha Quasi-estuarine characteristics. It IS the intermediate Chittoor puzha cannot be availed as repository of the municipal a freshwater source as chloride level waste of northern half of the crosses 500 mg/L for most part of city. Tidal action, thorough the year. Salinity fluctuates mixing and pH shock keep remarkably across the months in the waters clean. The response to tidal intrusion and temporary bund at Kothad events of rainfall. Being under the and the solid waste heap direct and unimpeded influence of upstream do apparently tides, the river experiences daily weigh on its self-purification fluctuations in water quality. Here, capacity. Salinity levels were contrary to the regular pattern, steadily on the rise until after nitrate peaks in early February. The April. Sharp fluctuations in water is hard and saline for most pH levels are presumably due part of the year. Sulfate reaches its to fugitive discharges. Fish lowest in early February and in kills are reported from time to 82
June. Phosphate Increases until time early June and then decreases. Total iron falteringly rises over the summer. Water is never alkaline and is often very acidic which is not expected of a tidal embayment. This implies that factors other than sewage pollution and tidal dynamics are overtly or covertly operating in the system. Acidic discharges from the chemical industries upstream could be surmised. The violent fluctuation of alkalinity provokes precipitation and solubilization of iron alternately.. 11 Canals of West Fast becoming coloured after the The canals of West Cochin Cochin temporary post-monsoonal present a different temporal clarification. West Cochin IS pattern. These canals begin confronted with extreme cases of at a certain part ofthe estuary municipal pollution. Pathayathod, and end up in yet another part just behind the Government of the estuary. During the Hospital, IS the most polluted. rainy season, fresh water Pandarachal IS plagued by confounded by municipal eutrophication In the summer waste accumulated In the 83
Page 1 and 2:
Salinity Intrusion and Seasonal Wat
Page 3:
IV Table of Contents LIST OF TABLES
Page 6 and 7:
11 III IV V VII List of Tables Tabl
Page 8 and 9:
III IV V IX Fig 3.1 Classification
Page 10 and 11:
hI. were found to be creeks extendi
Page 12 and 13:
XIII The study embodied here is par
Page 14 and 15:
1.1 Fresh water as a natural resour
Page 16:
taught us to value fresh water more
Page 20 and 21:
Source: Keller (1984) .... There is
Page 22 and 23:
The role played by water as a solve
Page 24 and 25:
3. Commercial water supplies 4. Was
Page 26 and 27:
The status report presented above d
Page 29 and 30:
Responses Reversible Direct Respons
Page 31 and 32:
Salinity intrusion is the most sign
Page 34 and 35:
eaches 15 g/kg. Work by Boyle, Edmo
Page 37 and 38:
Cd. The .removal of phosphate may o
Page 39 and 40:
1. Dissolution nutrients from parti
Page 41 and 42:
unpolluted estuaries left and most
Page 43 and 44:
The design, according to Maxted et
Page 45 and 46:
that the water biotic quality did n
Page 47 and 48:
nutrient load was predictive but co
Page 49 and 50:
For a city fast growing, as in the
Page 51 and 52:
CHAPTER 2
Page 53 and 54:
2.1 The study area Chapter 2 MATERI
Page 55 and 56:
salinity and the trapped water bodi
Page 57:
2.2 Cochin and the back water lagoo
Page 60 and 61:
Cochin originally developed as a co
Page 63: 400,000 commutes to the city from t
Page 67 and 68: disparity. Such an engineering modi
Page 69: 4. Mullassery canal: (Figure 2.7) T
Page 73: 11. Poornipuzha:(Figure 2.10) It is
Page 76 and 77: are two fresh watercourses ending u
Page 78 and 79: Cochin Corporation records, there a
Page 80 and 81: 2. Poorni River - Konnara thod - Pa
Page 82 and 83: 8. KSEB-International Stadium (clos
Page 84 and 85: 9 Perumpadappu kayal 3 10 Kumbalang
Page 87 and 88: Onceback in the laboratory, where r
Page 89: pH was chosen as a regular paramete
Page 92 and 93: influences chemical process like so
Page 95 and 96: salinity pattern is applicable to t
Page 97 and 98: ecorded on 9 th March. The Ambalapp
Page 99 and 100: or even equal to that of the sea wa
Page 101 and 102: the latest engineering modification
Page 103 and 104: ThripoonithuraMunicipality's waste
Page 105 and 106: 4 Chithrappuzha- Water doled out fr
Page 107 and 108: 6 Mullassery Canal whole is flood p
Page 109 and 110: a deleterious effect on the quality
Page 111: - Adimury the railroad to Kaloor is
Page 115 and 116: 12 Punchathod- Kharee thod the anal
Page 117: ocearnc ongm, But Phosphate level r
Page 120 and 121: COD(nlglL) 73.4 103.3 243.1 COD(mgl
Page 122 and 123: TH(mg CaC03/L) 64.7 186.4 443 TH(mg
Page 125 and 126: TH(mg CaC03/L) 114.6 1334.3 3480 TH
Page 127 and 128: TH(mg CaC03/L) 118.8 2489.4 9800 TH
Page 131 and 132: 60 50 40 20 10 o WOI Fig 3.198WQI o
Page 133 and 134: As Figure 3.198 depicts water quali
Page 135 and 136: Table.3.87 Classification of water
Page 137 and 138: The only tidal body where the seaso
Page 139 and 140: violently multiplies wherever the c
Page 141 and 142: than 61mg/L. Falls in alkalinity co
Page 143 and 144: is an exception as phosphate follow
Page 145 and 146: sweep the earth following the sun a
Page 168:
500 350 150 100 50 90 80 70 60 20 1
Page 251:
CNP StoIchioIlleQr6 --••_.--t N
Page 257:
DIN. 121 4.2.1.5 Stoichiometric der
Page 260:
olume Surface flo 124 oxes. Vx is a
Page 275:
138 February 0.02 0.01 392 11.7 31.
Page 284 and 285:
CHAPTER 5
Page 286 and 287:
145 depletion in the canals. Again
Page 288 and 289:
147 7 Arius "Plastistomus 50 Megalo
Page 290 and 291:
149 5.3.1 Canals heavily polluted a
Page 293 and 294:
151 deweeded and maintained well, e
Page 295 and 296:
All points but Panar and Karingachi
Page 297 and 298:
West Cochin Wholestretch 155 Whole
Page 299 and 300:
Edappally thod - whole stretch abov
Page 301 and 302:
159 At present, the water is not fi
Page 303:
161 effective aeration to the putri
Page 307:
174 45. Flemer. Potential sediment
Page 311:
178 107: Pritchard DW. What is An E
show all

Salinity Intrusion and Seasonal Water Quality Variations in the Tidal ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?