Accepted Papers - 3.pdf - UNESCO

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Table 5: Water use efficiency (kg/ha mm) in drip (8 lph), drip (4 lph) and micro sprinkler irrigation � � � 354
National Seminar on Rainwater Harvesting and Water Management 11-12 Nov. 2006, Nagpur 62. Urban Stormwater Management Through Sustainable Urban Drainage Systems - A Unified Approach Through Constructed Wetland using Macrophytes * M. N. V. Prasad Abstract Stormwater is a important water resource. Stormwater treatment and management is an important topics in tropical countries. In the wake of 2005 Bangalore and Mumbai urban flash floods all concerned authorities must examine the feasibility of implementing “ Sustainable Urban Drainage Systems (SUDS)” a well established and operationalized in developed counties. This is a neglected area in Indian scenario. In this paper stormwater treatment and management using macrophytes is described. A glossary of terms is also attached at the end. INTRODUCTION Pollutants that originate mainly from nonpoint sources, which are difficult to control. Constructed wetlands are designed to intercept and remove a wide range of contaminants from waste water. These wetlands can save time and money by using natural mechanisms to treat non-point source pollution before it reaches lakes, rivers, and oceans. Conventional wastewater treatment plants can effectively remove non-point source pollution, but are expensive to build and operate. Therefore, Local waste water treatment plants are desirable to reuse water. SUSTAINABLE URBAN DRAINAGE SYSTEMS FOR COLLECTION OF STORMWATER – WATER TREATMENT IN CONSTRUCTED WETLAND USING MACROPHYTES : The use of aquatic plants in water quality assessment has been common for years as in-situ biomonitors and for in situ remediatio. The occurrence of aquatic macrophytes is unambiguously related to water chemistry and using these plant species or communities as indicators or biomonitors has been an objective for surveying water quality. Aquatic plants have also been used frequently to remove suspended solids, nutrients, heavy metals, toxic organics and bacteria from acid mine drainage, agricultural landfill and urban stormwater runoff. In addition considerable research has been focused on determining the usefulness of macrophytes, as biomonitors of polluted environments and as bioremediative agents in waste water treatments. The response of an organism to deficient or excess levels of metal (i.e. bioassays) can be used to estimate metal impact. Such studies done under defined experimental conditions can provide results that can be extrapolated to natural environment. There are multifold advantages in using an aquatic macrophyte as a study material. Macrophytes are cost-effective universally available aquatic plants and with their ability to survive adverse conditions and high colonization rates, are excellent tools for studies of phytoremediation. Rooted macrophytes especially play an important role in metal bioavailability through rhizosphere secretions and exchange processes. This naturally facilitates metal uptake by other floating and emergent forms of macrophytes. Macrophytes readily take up metals in their reduced form from sediments, which exist in anaerobic situations due to lack of oxygen and oxidize them in the plant tissues making them immobile and bioconcentrate * Department of Plant Sciences, University of Hyderabad, Hyderabad 500 046, India. Tel: +91-40-23011604, 23134509 Fax: +91-40-23010120, 23010145 E-mail: mnvsl@uohyd.ernet.in 355
Page 1 and 2: National Seminar on Rainwater Harve
Page 3 and 4: once subsoil water starts draining
Page 5 and 6: The plantation process starts with
Page 7 and 8: DOLASANE , SANGAMNER RANGE I, SANGA
Page 11 and 12: Table 1. Present land use of waters
Page 13 and 14: the determination of specification
Page 15 and 16: Hydrological Parameters (mm) 140 12
Page 17 and 18: Drainage Engineering, 129(3): 184-1
Page 19 and 20: March to July, 2004 in the field si
Page 21 and 22: mm in 4 lph drip followed by 755.25
Page 23: Table 3 : Seasonal water use (mm) i
Page 27 and 28: pinnata) Aquatic plants are represe
Page 29 and 30: the base of the trench to assist dr
Page 31 and 32: SUDS (Sustainable Drainage Systems)
Page 33 and 34: Figure 3 : Cascade model of constru
Page 37 and 38: H eff = H R - H aq - H f ……..
Page 39 and 40: • Layers of gravel/media laid hor
Page 43 and 44: 1.3 % annually, and the total energ
Page 45 and 46: Figure 1a. Schematic diagram of sol
Page 47 and 48: Figure 5. Cross-section of partitio
Page 51 and 52: Fig. 1 (a) - (d) : Water Level Soun
Page 53 and 54: farms and industries hope to get ad
Page 57 and 58: Geology of Area The area is a part
Page 59 and 60: ground water recharge, which includ
Page 61 and 62: Table - 3 : Salient features of the
Page 69 and 70: eing 6.08, pH value of AB 3 and AB
Page 71 and 72: Table 2 : Tolerance limit for metal
Page 73 and 74: CASE STUDY The Salem Municipality i
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After analyzing the characteristic
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1. Ash Pond water recycling System
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Poly Electrolyte Dosing RAIN WATER
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Canteen Waste Garbo-drain Bar Scree
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SERVICE WATER FOR SPAYING COAL CRUS
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In coastal areas of Gujarat, the vi
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Water diversion Channel The work fo
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04. Natural Water harvesting at Sol
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Work Done Storage No. of Area No. o
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Conclusions The process of rainwate
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Infact, these are ‘lessons’ tha
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we get our act together and make wa
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National Seminar on Rainwater Harve
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and weathering also control the wat
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One relatively easy means of storin
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Ground Water Conservation Technique
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anging from 37-60% of recommended d
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given priority before implementatio
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was having potential to irrigate 15
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water, use of improved seed and bal
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the result of the success they have
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un off from one hill and conveying
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harvest will certainly solve the wa
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If the rain precipitation in a vill
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echarging , A study of world wide f
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these villages, the people themselv
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improve the quantity and the qualit
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The opinion of the public for the q
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in fact the base of energy in Tajik
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end of 80’s building of Roghun’
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consumption of oil on 11 times more
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change waterness charge o Vakhsh m
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are following: a) Compound of const
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for subsequent use of water for irr
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years. These beels can also be conv
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ody through water conservation and
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contribute to increased fish produc
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Figure 1 : Map of Bangladesh showin
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end uses and the intentional manage
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INTRODUCTION Indian water sector is
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ut definitely they are not substitu
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having the height greater than 50m
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ain. There is no conducive evidence
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chase food self sufficiency as a go
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REPORTB OF WORLD COMMISION ON DAMS
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