CDM projects in wastewater treatment can generate electrical energy, reduce energy consumption, and, in reducing methane, provide the obtention of carbon credits. The implementation of sewage collecting nets and treatment centers for the cities, malls, hotels and/condominiums favor a solution that can be seen as a CDM project, because, besides reducing methane production, it also contributes for sustainable development in the areas where treatment is carried out.

Through anaerobic digesters, sewage mud is capable of producing electrical energy enough for the treatment center itself and to negotiate or compensate with the distribution centers. Besides being used in public system and condominiums, there is also the possibility of carrying out the same project for industrial effluents in some areas like the food industry (tomato products, preserves, citrus culture, slaughterhouses, etc.) and cellulose.

Therefore, what is normally considered an expense (as cities and industries have to send waterwaste mud to sanitary landfills or dumps, or, at the worst, lead the system directly to rivers, without treatment, being subjected to environmental fines), can turn into profit, in the following situations:

• Good use of electrical energy from generated biogas;
• Sale or self-use of organic fertilizer;
• Reduction of water consumption when reusing it after proper treatment;
• With methane reduction, negotiation of carbon credits.

JMalucelli & CMC Ambiental´s teamis prepared to help the client in the conception and elaboration of a CDM project for cities and industries as well as in the certification process according to the Kyoto Protocol. Even more, if necessary, they are prepared to help with the financial structure itself, with the possibility of promoting an anticipated sale of future carbon credits, for the amortization of costs of the engineering process, the necessary equipment, the civil constructions, and the certification process.