Environment Management Plan. of M/s Mahananda Spa & Resorts Pvt. Ltd.

Transcription

1 Environment Management Plan of At Khasra No. 605 PTC Road, Village & Tehsil Narender Nagar, District Tehri Garhwal (Uttarakhand)

2 Brief Features of the Project: Name of the Project Hotel & Resort Project by M/s Mahananda Spa & Resort Pvt. Ltd., (New project). Location Khasra No. 605, PTC Road, Village & Tehsil Narender Nagar, District Tehri Garhwal, Uttarakhand Objective To create an environment that could support the culture of good standard of essential facilities for students required for day to day living. To enhance the surroundings with greenery, landscaping and recommended aesthetics. To create a healthy planned environment Address for Communication Mr. Mohd Faisal Siddiqui Khasra No. 605, PTC Road, Village & Tehsil Narender Nagar, District Tehri Garhwal, Uttarakhand Land Use as per norms Hotel & Resort Project. Total Plot area 51, m 2 (5.16 ha.) Built up area 32, m 2 Green Area 17, m 2 area under trees along periphery, roads and blocks. Parking Provided Parking Details Required Car Parking (@0.5ECS per 100m2) ECS Proposed basement Parking ECS Proposed Surface Car parking ECS Parking Provided ECS Total Water Requirement KLD Fresh Water Requirement KLD Source of Water Bore well augmented with Water Tankers Waste Water Generation 85.4 KLD STP Capacity 100 KLD Treated Waste Water 72.5 KLD Solid Waste generated Approx Kg/day Solid Waste Management It will be segregated into biodegradable, recyclable and others components and disposal will be ensured into municipal bins. Separate bins for biodegradable waste and recyclable waste will be provided. Rainwater Harvesting 7 number of RWH pits would be created for rainwater harvesting. Total Electrical 3454 KW Requirement DG Sets 2 DG Sets of capacity 1250 KVA each Use of Solar energy Solar lighting for common areas and solar water heaters 2

3 Water Description: S. No Description 1. Hotel a. Guest Rooms (153 x 1.5 =229.5 persons) Per capital water demand (as per NBC, 2005 Fresh Water requirement (KLD) Treated Water (KLD) Total Water (KLD) Waste Water (KLD) 320 Lt/day b. Kitchen /Restaurant c. Staff (150 persons) 45 Lt/day d. Visitors (100 persons) 15 Lt/day Swimming Pool HVAC Landscaping (17,014 m 2 ) lit/m 2 4. Road Washing Total * * Available waste water after treatment is 72.5 KLD STP Details: An external sewage network shall collect the sewage from all units, and flow by gravity to the proposed sewage treatment plant. Following are the benefits of providing the Sewage Treatment Plant in project site:- Net daily water requirements from tube wells shall be reduced by utilization of the treated waste water. This shall consequently lead to a lower withdrawal from the underground aquifer water sources. Dependency on the public utilities shall be reduced for water supply and sewerage system. Sludge generated from the Sewage Treatment Plant shall be rich in organic content and an excellent fertilizer therefore it shall be used in green belt area of the project site. SEWAGE TREATMENT TECHNOLOGY It is proposed to install a common sewage treatment plant of capacity 200 cum per day including 20% additional capacity as per MOEF requirement, to recover the recycled water of quality suitable for use as flushing, irrigation, basement, car washing, water body makeup and DG cooling tower makeup. The process proposed to be adopted is high efficiency SBR plant followed by ultra filtration system for flushing, water body makeup & car wash water requirement. It occupies less space and is an efficient process. The following parameters shall be adopted for the design of Sewage Treatment Plant. 3

4 Parameter Value Before Treatment After Treatment Ph BOD Mg / L Less than 5 Mg / L Suspended Solids Mg / L Less than 5 Mg / L COD Mg / L Less than 30 Mg / L Oil & Grease 50 Mg / L Less than 5 Mg / L Detergents Mg / L Less than 5 Mg / L STP PROCESS DESCRIPTION DESIGN HIGHLIGHTS The System proposed based on Sequential Batch Reactor (SBR) Technology. Lesser footprint compared to conventional treatment plant. Better effluent quality compared to conventional treatment. Low chemical consumption and simple cleaning. Design Capacity: Sewage treatment Plant: Plant Capacity Service cycle : 100 M³/day : 22 Hours Raw Sewage Analysis Raw sewage characteristics for design: Sl. No. Parameter Unit Average 1. Ph Suspended Solids Mg/l BOD (5 days at 20 ºC) Mg/l COD Mg/l Oil & Grease Mg/l

5 Treated sewage analysis after ultra filtration system Sl. No. Parameter Unit Treated water 1 ph Suspended solids Mg/l < 5 3 BOD Mg/l < 5 4 COD Mg/l < 30 5 Oil & Grease Mg/l < 5 PROCESS DESCRIPTION The out fall sewer main from the last manholes, (up to 100 cum per day) will be let into a screening chamber by gravity flow. Large solids particles shall be intercepted by a bar screen, preceded by a grease trap. The primary clarified wastewater is then further pretreated by fine screening before entering the bioreactor portion of the SBR process. Fine screening shall be done by proposed bar screen. In the proposed system there will be only one Reactor in which sewage undergoes the unit operations of Aeration, Settling and Decanting. A write up on the same is given below for your reference. SBR actually represents a very elementary form of treatment process known as Fill and Draw. Wastewater added to a reactor is treated to remove undesirable components and is subsequently discharged. The reactor is a self-contained system incorporating equalization, aeration and clarification, aeration and clarification within the confines of a SINGLE basin. This uses the latest biomass conditioning technology. This enables the system to attain nutrient control without the addition of chemicals and to outperform continuous flow through systems. In this system all of the treatment process takes place in the reactor tank and clarifiers are not required. This process treats the wastewater in batch mode and each batch is sequenced through a series of treatment stages. The major advantages are: Improved sewage qualities in terms of nutrient removal. The elimination of separate clarifier and sludge return pumps. Increased settling area (the total reactor area is used for settling). A perfectly quiescent settling environment. Elimination of hydraulic short circuiting. 5

6 A special ability to handle extremely high organic and hydraulic shock load. The capability to equalize flows and loads. OPERATION Normally the process follows the basic steps of; AERATE, Settle and DECANT. The actual cycle time will vary with the effluent results desired. If only BOD reduction is desired, a cycle time as 3 hours may be used. If further treatment, to obtain nitrification/de-nitrification is required, the cycle time can be extended to accommodate the process requirements. The AERATE phase in the system is typically timed controlled and can be adjusted depending on the required removal efficiency. The AERATE phase is followed by the SETTLING PHASE. The settling represents the quiescent phase during which no aeration or mixing occurs and is also time controlled. The last step is the DECANT step represents the quiescent phase during which no aeration or mixing occurs and is also time controlled. There are typically four cycle events: i. FILL: The influent wastewater is distributed in to the sludge blanket. The Fill event can take place under mixed or unmixed conditions and aerated or un-aerated conditions. ii. REACT: The React events include mixing and aeration. Aerated conditions serve to oxidize organic carbon, nitrify ammonia, and promote uptake of phosphorus in the sludge. Un-aerated conditions promote de-nitrification of nitrite and nitrate. iii. SETTLE: The Settle event is when all mixing and aeration is turned off and the mixed liquor solids settle, allowing a clear supernatant to form in the upper part of the tank. iv. DECANT: The decant event occurs after a substantial depth of supernatant has formed. Automatic valves open, and supernatant is drawn off the upper portion of the tank. Sludge wasting can occur during this time, because the settled sludge bed will have attained a maximum concentration of solids. OZONATOR STP treated water after decant shall be passed through ulra ozonator system and used for flushing, DG cooling tower makeup, car washing, water body makeup and irrigation system. DISINFECTION Disinfection of treated sewage will be done using UV Sterilizer. Sludge Transfer and Disposal Pumps 6

7 Two numbers of sludge feed pumps to filter press (one duty and one standby) shall be provided. Each shall be of screw type pumps. The material construction shall be the same as the sewage pumps. Tertiary Treatment This tertiary treatment shall be provided for the effluent used for irrigation and DG cooling tower make-up water tank, irrigation, water body makeup, car washing and flushing system. Rainwater Harvesting: The storm water disposal system for the premises shall be self-sufficient to avoid any collection/stagnation and flooding of water. The amount of storm water run-off depends upon many factors such as intensity and duration of precipitation, characteristics of the tributary area and the time required for such flow to reach the drains. The drains shall be located near the carriage way along either side of the roads. Taking the advantage of road camber, the rainfall run off from roads shall flow towards the drains. Storm water from various blocks shall be connected to adjacent drain by a pipe through catch basins. The water table becomes more than 25 m in future, rainwater harvesting can be carried out. Therefore, it has been calculated to provide 7 rainwater harvesting pits at selected locations, which will catch the maximum run-off from the area. 1) Since the existing topography is congenial to surface disposal, a network of storm water pipe drains is planned adjacent to roads. All building roof water will be brought down through rain water pipes. 2) Proposed storm water system consists of pipe drain, catch basins and seepage pits at regular intervals for rain water harvesting and ground water recharging. 3) For basement parking, the rainwater from ramps will be collected in the basement storm water storage tank. This water will be pumped out to the nearest external storm water drain. Peak hourly rainfall has been considered as 45 mm/hr. The recharge pit of 4m x 3m and 2.5 m depth will be constructed for recharging the water. Inside the recharge pit, a recharge bore will be constructed having 600 mm diameter and 30 m depth. The bottom of the recharge structure will be kept 4 m above this level. At the bottom of the recharge well, a filter media will be provided to avoid choking of the recharge bore. Design specifications of the rain water harvesting plan are as follows: Catchments/roofs would be accessible for regular cleaning. 7

8 The roof will have smooth, hard and dense surface which is less likely to be damaged allowing release of material into the water. Roof painting will be avoided since most paints contain toxic substances and may peel off. All gutter ends will be fitted with a wire mesh screen and a first flush device would be installed. Most of the debris carried by the water from the rooftop like leaves, plastic bags and paper pieces will get arrested by the mesh at the terrace outlet and to prevent contamination by ensuring that the runoff from the first minutes of rainfall will be flushed off. No sewage or wastewater would be admitted into the system. No wastewater from areas likely to have oil, grease, or other pollutants will be connected to the system. Calculations for storm water load (i) One hour intensity of rainfall (peak) for 50 years frequency 45 mm / hr (ii) Average runoff co-efficient for terraces and other built up areas 0.9 (iii) Average runoff co-efficient for landscape areas 0.2 (iv) Plot area 50,811 m 2 (v) Area for terraces and other built-up areas 11,686 m 2. (vi) Area for landscaping/green 39,124 m 2 (vi) Infiltration well capacity design period (vii) Net run off of which holding is required for infiltration (viii) Theoretical volume of infiltration wells required for terrace & other built-up areas approx. (Total area x run of co-efficient x ) (ix) Theoretical volume of infiltration wells required for landscape areas approx. (Total area x run of co-efficient x ) 15 minutes mm m 3 Say 120 m 3 (A) 88 m 3 Say 90 m 3 (B) (x)total volume of collection tank (A+B) 210 m 3 (xi) No. of rain water harvesting pits proposed 7 Nos. (xii) Capacity of each rain water harvesting pit 30 m 3 (xiii) Size of the rain water harvesting pit 4m x 3m x 2.5m water depth 8

9 Solid Waste Management: Estimated Waste Generation for Proposed Project: Solid waste would be generated both during the construction as well as during the operation phase. The solid waste expected to be generated during the construction phase will comprise of excavated materials, used bags, bricks, concrete, MS rods, tiles, wood etc. The following steps are proposed to be followed for the management of solid waste: Construction yards are proposed for storage of construction materials. The excavated material such as topsoil and stones will be stacked for reuse during later stages of construction. Excavated top soil will be stored in temporary constructed soil bank and will be reused for landscaping of the residential group housing project. Remaining soil shall be utilized for refilling / road work / rising of site level at locations/ selling to outside agency for construction of roads etc. Solid Waste Construction Waste Food Waste Construction waste, Broken Bricks, Waste Plaster Empty Cement Bags Excavated Soil As per MSW Rules, 2000 and amended Rules, 2008 Used in re-filling, raising site level Reused for road making Top soil conserved for landscaping, balance used in refilling Solid Waste Management Scheme (Construction Phase) 9

10 During the operation phase, waste will comprise domestic as well as agricultural waste. The solid waste generated from the project shall be mainly domestic waste and estimated quantity of the waste shall be approx kg /day and STP sludge 80 kg/day. Facilities Provided Waste generation norms per unit Calculation of Solid Waste Generation Basis of assumption Unit Total Waste Generated (Kg/day) Hotel 1.1 kg/room /day Rooms Sludge 0.4 kg per KLD Assuming 20% 200KLD 80.0 solid (Source: For Waste Collection, Chapter 3, Table 3.6, Page no. 49, Central Public Health & Environment Engineering Organization, Ministry of Urban Development, (Government of India, May 2000)) Following arrangements will be made at the site in accordance to Municipal Solid Wastes (Management and Handling) Rules, 2000 and amended Rules, Collection and Segregation of waste 1. A door to door collection system will be provided for collection of domestic waste in colored bins from hotels rooms. 2. Litter bin will also be provided in open areas like parks etc. Treatment of waste Bio-Degradable wastes 1. Bio-degradable waste will be subjected to organic waste convertor and the compost will be used as manure. 2. STP sludge is proposed to be used for horticultural purposes as manure. 3. Horticultural Waste is proposed to be composted and will be used for gardening purposes. Recyclable wastes i. Grass Recycling The cropped grass will be spread on the green area. It will act as manure after decomposition. ii. Recyclable wastes like paper, plastic, metals etc. will be sold off to recyclables. Disposal Recyclable and non-recyclable wastes will be disposed through Govt. approved agency. Hence, the Municipal Solid Waste Management will be conducted as per the guidelines 10

11 of Municipal Solid Wastes (Management and Handling) Rules, 2000 and amended Rules, A Solid waste management Scheme is depicted in the following figure for the residential project. Solid Waste Management Scheme (Operation Phase) Air Pollution Control: Peripheral road shall be provided for smooth traffic movement. DG sets shall be attached with stack of appropriate height as per CPCB norms to disperse the air pollutants. Plenty of parking spaces shall be provided. Greenbelt on periphery with broad foliage trees shall be provided. CONSTRUCTION PHASE Dust Suppression System: Seeding on the top of preserved top soil so as to prevent dust emissions from it. Wind breakers all along the periphery of the project site. Sprinklers. OPERATION PHASE Source of Air Pollution: Vehicular movement and DG Sets. To combat air pollution, development of green belt has been proposed & proper Traffic management would be ensured. Backup DG sets will follow emission norms and be operated only during power failure. 11

12 Adequate stack height to be provided as per CPCB Guidelines. The only impact on the air quality will be emissions from DG sets. The Mitigating Measures are:- Backup DG sets will follow emission norms and be operated only during power failure. The source of air pollution in the proposed project will be due to vehicular movement also. During construction phase the vehicles employed would be checked for vehicular emission. To combat air pollution, development of green belt has been proposed. Parking Provided: Parking space will be provided for 110 ECS. The Road Markings, Lane Markings, Signs and Signage would be clearly indicated advance. Gate will be manned with efficient security that can guide the entry and exist of Vehicles. Entry and exit points would be designed in such a manner so that it does not disturb the existing traffic movement. Speed humps and traffic circles would be installed in some portions of the roads to control the speed as well as movement of vehicles. There would be adequate provision for Parking of vehicles. Noise & Vibration: S.No. LIKELY IMPACTS MANAGEMENT & MITIGATIVE MEASURES A DURING CONSTRUCTION PHASE 1. Noise level expected to be around 60 db (A) B. DURING OPERATION PHASE 2. Traffic movement is anticipated to generate noise. 3. Operation of DG sets during power failure Barricading of the Construction Site. Provision of required Mufflers / Enclosures to the Machineries. Green Belt with broad leaf tree plantation Acoustic lining shall be provided on walls and ceiling of DG room in order to minimize noise. Movement of heavy machinery would be during the non-peak hours and restricted at nights. Efforts would be made to use excavations/construction machines which generate noise levels below 85 db (A). Construction machineries employed would be adequately tested for noise levels generation as per IS standards and vibration allowances. Silencers would be fitted on the construction machinery and DG sets would be insulated. Acoustics enclosures would be provided to DG sets at the construction site. Earmuff and other protecting devices would be provided to labours working near high noise generating machines and the duration of exposure should be as per the statutory norms. 12

13 Strong and heavy duty steel base frame for housing DG Sets. Provision for Air-intake and Air-exhaust silencer(s) for preventing leakage of sound, provision of operable doors for easy access to virtually every part of DG Sets, provision of additional screen and hoods for multi-medium noise suppression. Electrical Load: Total Electrical Load has been worked out to be 3454KW for the entire complex. Use of solar lights for external areas has been planned. Extensive use of CFLs/LEDs for energy conservation For back-up power DG sets will be installed. The stack height would be as per CPCB norms. Energy Conservation: Solar lighting will be provided for open spaces. Use of CFL/LEDs in common areas. Natural Ventilation and Lighting. Organized Greenbelt Development: Local and ornamental trees in the organized green development area will be planted. Total Green Area will be about 17, m 2. Green areas will be irrigated through drip system. Facilities for Construction Workers Labour hutments will be constructed near the site having brick masonary walls in mud mortar with earthen tiles roofing and dry brick flooring and lockable doors. Potable water supply will be provided in labour hutment area. Bathrooms (separate for ladies and gents) and toilets will be provided. First aid room will be provided with periodical visit by a doctor. Baby Care Centre will be provided for infants and children of construction workers Environmental Protection Measures During Construction Proper fencing of the site would be done before start of excavation and construction; Excavated soil would be stored safely for future use in landscaping; Proper measures would be taken to ensure that soil and building materials do not go in runoff water; Building materials would be covered and stored safely; Temporary path for transportation of building materials would be sprinkled with water to minimize dust; Proper sanitary and safety measures would be ensured for construction workers; DG sets for construction with acoustic covering and proper stack height. Proper vehicular operation and maintenance 13

14 Occupational safety measures for workers Clean/potable water provision for workers Proper land cut and fill practices During Operation Rainwater will be harvested properly; Sewage will be treated and reused. Energy conservation measures will be adopted; Solar geyser will be used for hot water requirement; It will be ensured that in any condition sewage does not overflow; Proper parking will take care of honking of horns and ambient noise; DG sets will be enclosed in acoustic coverings with recommended stack heights; DG sets will meet the norms prescribed for noise level as well as air emission as prescribed by MoEFCC. Corporate- Social Responsibility The social management plan has been designed to take proactive steps and adopt best practices, which are sensitive to the socio-cultural setting of the region. Corporate- Environmental Responsibility Main objectives of environmental policy are as following: Comply with all applicable environmental laws, and other commitments, with the objective of moving beyond compliance to create shareholder and customer value; Utilize natural resources more efficiently; Engage employees towards energy efficient products; Measure and publicly communicate the progress being made towards improving environmental performance and independently verify key performance results; Proponent shall be committed towards responsible waste management and aim to reduce, reuse and recycle waste generated through premises by: Reviewing and improving working practices. Building effective waste management and awareness into the decision making process. Delivering effective waste management information to all employees. *********************** 14