China - Tianjin Landfill Gas Recovery Project

Page 1 INTEGRATED SAFEGUARD DATA SHEET CONCEPT STAGE Report No.: 40131 Date ISDS Prepared/Updated: May 28 2006 I. BASIC INFORMATION A. Basic Project Data Country: China Project ID: CN-P086035-LEN-BBCBF Project Name: CN-PCF-Tianjin Landfill Gas Recovery Task Team Leader: Greg Browder Estimated Appraisal Date: May 2006 Estimated Board Date: N/A Managing Unit: EASUR Lending Instrument: N/A Sector: Solid Waste Management Theme: Carbon Finance CDM project IBRD Amount (US$m.): N/A IDA Amount (US$m.): 0.00 GEF Amount (US$m.): 0.00 PCF Amount (US$m.): 4.067 (Revenue from sales of carbon credits) Other financing amounts by source: N/A BORROWER (US$m.): 5.15 0.00 Project Objectives The development objective of the project is to recover landfill gas from Tianjin Shuangkou Municipal Solid Waste Landfill Site and utilize the recovered gas for electricity generation for on-site operational needs and/or for export to the municipal grid. C. Project Description The Shuangkou landfill is the first modern sanitary landfill site in Tianjin; designed and constructed in accordance with national standards, including a layer of impermeable base liner and a leachate collection and treatment system. The project was partially financed by a World Bank loan through the First Tianjin Urban Development and Environment Project (IDA-23870), which closed in 2002. There is also an on-going World Bank- financed Second Tianjin Urban Development and Environment Project (IBRD No. 4695 CHA) that was approved in 2003 and is expected to close in 2009. Construction of the Shuangkou landfill started in 1999 and the site commenced operation in January 2001. The site is designed to receive 2,700 metric tons per day (tpd) and is currently operating at an average daily input of 1,300 tpd. The current accumulated Page 2 quantity of solid waste is approximately 1.46 million tons (March 2006). The projected depth of waste, after reaching the final contour, will be approximately 34 meters with 31 meters above grade and an average of 3 meters below grade. Total design capacity is 8.5 million cubic meters. At an approximate density of 0.8 kg per cubic meter, it works out to be 6.8 million metric tons. The site is equipped with two compactors and several pieces of earth moving equipment. The original site design included a passive landfill gas venting system with 42 vertical wells interconnected at the base. Vertical wells are made with 200 mm diameter plastic (HDPE) gas collection pipes, within a cage packed with gravel. The wells are located in rows with a separation distance of approximately 120 meters between the wells. Rows are 80 meters apart with 60 meters offset from the well center. The scope of the project is to construct an advanced landfill gas recovery and utilization system for Shuangkou Landfill and to generate electrical energy for landfill operational needs and/or for feeding electricity to the Tianjin City grid. Subject to the conclusion of the Feasibility Study, at the start of the project, one power generator unit would be installed at the Shuangkou site with a capacity of approximately 1.2 MW. Over time, the installed capacity is projected to go up to 5.0 MW with four power generation units. The estimated Phase 1 investment is approximately US $ 5.15 million from 2007 to 2011. The project would entail the design and construction of landfill gas recovery and treatment systems, including gas extraction wells, gas transport piping systems, blowers, condensate and contaminants removal units, gas compression system, a stand-by gas flare unit, power generation unit(s), a grid connection system and other process monitoring and control equipment and safety measures. Operation and management at the landfill facility will also be optimised as follows: