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## Meet the editor

Abd El-Fatah Abomohra is a professor of Environmental Engineering and the director of the New Energy and Environmental Laboratory (NEEL), Chengdu University, China. He is a DAAD fellow and performed postdoctoral research at Hamburg University, Germany, and Harbin Institute of Technology, China. He was named in the world's top 2% of scientists for two consecutive years. His team is primarily working on green energy

production from different biomass feedstocks.

El-Sayed Salama is a professor in the Public Health School, Lanzhou University, China. He is also a director of the Green Environmental & Energy Laboratory (GEEL) and a distinguished expert of science and technology in the ecological industry, Gansu Province. His GEEL research work focuses on bioenvironmental science and bioenergy. He has several journal publications to his credit.

Contents

**Section 1**

*by Venko Beschkov*

*and Ndumiso Duma*

**Section 2**

**Preface III**

Basics of Biogas Production **1**

**Chapter 1 3**

**Chapter 2 11**

**Chapter 3 29**

**Chapter 4 57**

**Chapter 5 71**

Case Studies and Evaluation **93**

**Chapter 6 95**

**Chapter 7 113**

Introductory Chapter: From Biogas Lab-Scale towards Industrialization

*by El-Sayed Salama and Abd El-Fatah Abomohra*

from Household and Agricultural Wastes

of Methane Production in Bioreactor *by Sharda Dhadse and Shanta Satyanarayan*

Biogas Production: Evaluation and Possible Applications

Resource Reclamation for Biogas and Other Energy Resources

*by Donald Kukwa, Maggie Chetty, Zikhona Tshemese, Denzil Estrice* 

Role of Microbial and Organic Amendments for the Enrichment

Global Fertilizer Contributions from Specific Biogas Coproduct *by Sammy N. Aso, Simeon C. Achinewhu and Madu O. Iwe*

A Case Study for Economic Viability of Biogas Production

Case Studies in Biogas Production from Different Substrates

from Municipal Solid Waste in the South of Chile *by Jean Pierre Doussoulin and Cristina Salazar Molina*

*by Adrian Eugen Cioabla and Francisc Popescu*

## Contents


Preface

The exponential growth of the global population and concurrent fast industrialization has led to the massive generation of municipal wastes, raising challenges of safe disposal. The proper management of municipal wastes through recycling is an essential approach for global sustainable development. So far, many countries have established regulatory guidelines for different waste management routes and pollution control measures. However, most of the applied routes are waste dumping, composting, or direct discharge into water bodies without adequate pretreatment, which seriously threatens the environment and humans. Thus, proper waste segregation and separation provide an efficient option for waste conversion into energy. On the other hand, energy demand correlates with population growth. Thus, global energy demand and environmental pollution are two inevitable issues that dictate the need to find alternative energy sources. Waste-to-energy is a widely used process for efficient waste management that is attracting much attention. For almost two decades, biofuel production from biowastes has been of paramount importance. In general, it is widely accepted that biowaste-derived fuels can reduce the current dependence on fossil-based products. Among different biofuel production routes, anaerobic digestion is, by far, the single most important technology for providing clean renewable biogas to millions of people in the rural areas of developing countries. Anaerobic digestion technology has several inherent benefits ranging from generating renewable energy, remediating biowaste and curtailing CO2/CH4 emissions to improving health/hygiene and overall

socio-economic status of rural communities in developing nations.

the economic feasibility of biogas production from municipal waste.

throughout the publication.

This book is an extension of our previously published book entitled *Biogas - Recent Advances and Integrated Approaches*. It provides new integrated approaches and case studies on biogas production. The book is divided into two main sections. The first section discusses the basics of biogas production from different feedstocks and the role of the microbial community, with the possible utilization of anaerobic digestate as a biofertilizer. The second section includes case studies and discusses

We would like to express our gratitude to all the contributing authors. We also wish to thank the author service managers at IntechOpen for being generously helpful

> **Abd El-Fatah Abomohra** Chengdu University, Chengdu, China

> > **El-Sayed Salama** Lanzhou University, Lanzhou, China
