Azura-Edo Independent Power Plant Environmental Impact ... - IFC

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Liquid Effluents Both oily water and chemical waste water effluents will be generated by the power plant operations. Effluents generated will include backwash effluent from pressure filters, regeneration effluent from the demineralisation plant as well as other chemical laboratory wastes, battery waste water, gas turbine compressor wash water and sludge. Further details of the effluents generated are provided in Table 3.3 below. Table 3.3 Details of Effluent Generated SI. No Waste Water Source 1. Chemicals Bulk chemical drains in water treatment plant Characteristics\ Contaminants Various chemicals Disposal Method Fed into the neutralisation pit, treated with acid/alkali and transferred to the central monitoring basin. Effluent (containing detergent, dirt and oil) from the gas turbine compressor on-line and off line wash and exhaust plenum drain will be fed to the wash water recovery pit. It will then be passed through the oil water separator and disposed by pumping to tankers. 2. Oil in water Lube oil and transformer oil mixed with water from transformer yard, gas turbine water wash drain, diesel fuel from oil tank, oil water run off and drains Oil contents: 500 – 10000 ppm (in case of fire), pH:5-9, Suspended solids:0-30 ppm This will be collected into an oily water capture basin and pumped into tankers for disposal offsite and the water effluent will be pumped into an oil water separation tank for secondary treatment. The oil separation tank will collect oil by an oil skimmer, which will then run into the oil holding tank and will be transferred to a tank truck for final disposal offsite. The oily wastes will be disposed of at a registered waste disposal facility. Heavier suspended solids will settle at the bottom of the separation tank and this sludge will be removed via the sludge tank and disposed to sludge drying beds. The treated effluent from this oil separation tank will be led to the central waste water monitoring basin before final discharge. Effluent discharge will be as per Nigerian and World Bank requirements. The oil removal from the catch basin, sludge disposal, gas turbine wash water and lube oil drain disposal shall be done manually by using portable sump pumps. AZURA EDO IPP 3-13 DRAFT EIA REPORT
SI. No Waste Water 3. Water Based Source DM plant regeneration waste Characteristics\ Contaminants Dissolved solids:
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Public Disclosure Authorized Public
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EXECUTIVE SUMMARY INTRODUCTION Azur
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• Screening and scoping • Basel
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In addition to predicted impacts fr
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International Standards and Guideli
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Figure 1 Layout of Proposed Power P
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Type of Emission Solid waste All so
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NIPP were used for NO 2. The result
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analysis are both qualitative and q
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other forms of salary jobs or servi
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Table 4 Summary of Impacts, Mitigat
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Impact Impact Description Phase Pre
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Box 2 Mitigation Hierarchy for Plan
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safety impacts are reduced to minor
Page 37 and 38: 5.2 METHODOLOGY 5-2 5.3 DEMOGRAPHIC
Page 39 and 40: Annex G - Unplanned Events and Emer
Page 41 and 42: IAEA International Atomic Energy Ag
Page 43 and 44: 1 INTRODUCTION 1.1 BACKGROUND This
Page 45 and 46: 1.2.2 Project Context The Project w
Page 47 and 48: Table 1.1 The EIA Team Name Organis
Page 49 and 50: EIA, sampling has been completed fo
Page 51 and 52: events is therefore assessed in ter
Page 53 and 54: Federal Ministry of Environment Pri
Page 55 and 56: Edo State Waste Management Board Th
Page 57 and 58: The proposed Project requires an EI
Page 59 and 60: as a building or irrigation system)
Page 61 and 62: instrument for monitoring and contr
Page 63 and 64: Convention Concerning the Protectio
Page 65 and 66: Box 1.2 World Bank Safeguard Polici
Page 67 and 68: • Step 5. Stakeholder Consultatio
Page 69 and 70: Chapter Title Description 8 Mitigat
Page 71 and 72: commensurate sums that will need to
Page 73 and 74: operation of the Project. The imple
Page 75 and 76: 2.4.3 Social Sustainability A detai
Page 77 and 78: signing of a Memorandum of Understa
Page 79 and 80: Key Component OCGT Associated Machi
Page 81 and 82: Gas Turbine Building The four gas t
Page 83 and 84: Government parastatal that has been
Page 85 and 86: 3.2.10 Fire Protection The gas turb
Page 87: foundations and is associated with
Page 91 and 92: 3.3.4 Administration Buildings The
Page 93 and 94: the area reserved for the HRSG and
Page 95 and 96: 3.6 OPERATION 3.6.1 Maintenance It
Page 97 and 98: Job title Level of Skill Business M
Page 99 and 100: Figure 3.2 Staff Organogram Plant M
Page 101 and 102: 3.8.2 Alternative Site Location Sev
Page 103 and 104: the next 20 years, the vast bulk of
Page 105 and 106: climate but straddles the Tropical
Page 107 and 108: The relative humidity of Nigeria is
Page 109 and 110: 4.4 GEOLOGY The Study Area is locat
Page 111 and 112: 4.5.1 Soil Types 4.5.2 Soil Quality
Page 113 and 114: season and were observably lower du
Page 115 and 116: increased with depth, showing a sig
Page 117 and 118: subsoil (15.00 - 35.00 x 10 3 cfu/g
Page 119 and 120: higher heterotrophic fungi concentr
Page 121 and 122: The results of the inorganic and or
Page 123 and 124: cfu/100ml at Orior-Osemwende during
Page 125 and 126: Air quality measurements were taken
Page 127 and 128: Figure 4.6 Sampling Locations for N
Page 129 and 130: Sample Code Noise Level - dB (A) A7
Page 131 and 132: Figure 4.7 Sampling Points ((Flora)
Page 133 and 134: All flora habitats surveyed were fo
Page 135 and 136: Figure 4.12 Fallow Land with Guinea
Page 137 and 138: Figure 4.16 A view of re-growing se
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Figure 4.19 Plant Species Discorea
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Conservation Status Scientific Name
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Species identified in the project a
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Urho-Nisen-Urho-Nisen, which will b
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• Participation of those with acc
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Table 5.2 Key Socio-Economic Indica
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Figure 5.3 Age Distribution, Edo St
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were classed as vulnerable by virtu
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Orior-Osemwende Orior-Osemwende is
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the communities within the Project
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Figure 5.6 Traditional Leadership S
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conflict could be a problem in the
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There are distinct gender divisions
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Petty Trading According to FGDs som
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the house. Almost a quarter of hous
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have no formal schooling; while app
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Name of sacred site worshipped in c
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Figure 5.11 Map showing the locatio
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stretches of the walls and moats re
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Figure 5.14 The Location of Moats S
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native doctors or herbalists. With
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project and its potential impacts (
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The Project identified the Nigerian
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Figure 6.2 Community Engagement in
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Figure 6.6 Consultation with the Ed
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Details of the asset census survey
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Stakeholder Engagement Engagement A
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6.5 KEY ISSUES RAISED This section
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6.6 PROJECT GRIEVANCE MECHANISM Gri
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to ensure that projects can proceed
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7 BIOPHYSICAL AND SOCIO-ECONOMIC IM
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2. Evaluation of the importance (or
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In addition to predicted impacts, t
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Significance for Socio-economic Imp
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Table 7.2 Species Value / Sensitivi
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Box 7.4 Mitigation Hierarchy for Pl
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AERMOD is considered to be appropri
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Figure 7.2 Wind Roses for Bohicon,
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Country Averaging period Recommende
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The WHO guidelines are particularly
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7.3.5 Receptors per year for a sing
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7.3.6 Impact Description and Signif
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Process Emissions: NO x and CO The
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Figure 7.5 1 h maximum NO 2, the Pr
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The values in Table 7.13 will there
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impacts exactly or take account of
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Figure 7.6 Operational noise levels
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also be required for the burial of
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The impact of the Project on water
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Artanema longifolium (a flowering p
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Table 7.18 Summary of Impact Signif
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The site will also generate general
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include estimates for the physical
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7.10.2 Impact Description and Signi
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for impacts to demographics during
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As discussed above, and due to the
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Project’s construction phase will
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during decommissioning is expected
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Due to the high unemployment rate i
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contract workers. An additional num
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enefit the local communities. These
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impact on a small number of inhabit
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Besides the construction of the pla
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• Psychological impacts associate
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7.15.4 Impact Description and Signi
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Impact Significance The extent of t
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• Bitumen shall not be overheated
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8.2.2 Operation With the implementa
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• Oil interceptors and silt traps
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• All surface water or other cont
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• Reduce or prevent off-site sedi
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8.5.2 Operation • After construct
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8.6.2 Operation • Waste shall be
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8.8 ECONOMIC RESETTLEMENT As noted
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impacts over the operations period.
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Effective and ongoing implementatio
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• Frequent and regular disclosure
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8.12.2 Operational The mitigation m
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8.13.2 Operation reduce the potenti
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• Personal Protective Equipment (
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8.14.3 Decommissioning The health a
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Figure 9.1 Annual mean NO 2, cumula
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Table 9.1 Summary of cumulative imp
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impact is not due to the operation
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9.3 SOILS AND GEOLOGY The implement
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9.10 EMPLOYMENT AND ECONOMY The Pro
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10 ENVIRONMENTAL AND SOCIAL MANAGEM
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Table 10.1 Environmental Management
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10.2.2 Communication Azura Power wi
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The management of change procedure
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Impacts Management Plans Impacts to
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frequency of this reporting will be
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Ref # Potential impact Desired Outc
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Table 10.4 Construction Phase: Envi
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Ref # Potential impact contaminatio
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Ref # Potential impact applied work
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Ref # Potential impact safety impac
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Table 10.5 Operational Phase: Envir
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Ref # Potential impact 3.4 Water Re
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Ref # Potential impact 3.10 Impacts
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Ref # Potential impact 3.12 Potenti
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impacts were considered to be negli
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Federal Environmental Protection Ag
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World Health Organization (2007) pH
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