Liquid pig manure management manual and its reuse in agriculture

This manual has been drawn up by:

• Ricard Danès (1) Agricultural engineer. D.E.A. Fédéral Pédologie et Aménagement des Sols. Paris VI University.
• Valèria Molina (1) Master in economic analysis. Graduate in Economic and Business Science.
• Ignasi Ll. Prats (1) Technical Engineer in Farming Operations. Master in Engineering and Environmental Management.
• Montserrat Álamos (2) Graduate in Veterinary Science.
• Jaume Boixadera (2) Agricultural Engineer. MSc Agropodology & Land Evaluation. University of Wageningen. Head of Resource and New Technologies.
• Eduard Torres (2) Graduate in Veterinary Science. Inspector of the National Veterinary Body. Head of the Stockbreeding Service.
• Co-ordinator: Ignasi Ll. Prats. Agència de Residus de Catalunya.

(1) Deparment of the Environment and Housing

(2) Department of Agriculture, Livestock and Fisheries

Index

Prologue

Abbreviations and symbols

Introduction

First part. The management of solid and liquid pig manures in stockbreeding operations

Chapter 1 Production of solid and liquid pig manures: reduction at origin

• 1. Introduction
• 2. Reducing the volume of the liquid pig manures
• 3. Reduction of the nitrogen content, phosphorus and other mineral elements in the liquid manure
• 3.1. Reduction of nitrogen
• 3.2. Reduction of phosphorus
• 3.3. Other mineral elements (heavy metals)

Chapter 2 Treatments applicable to liquid pig manures

• 1. Introduction
• 2. Classification of treatment systems
• 3. Pre-treatments
• 3.1. Solid-liquid separation
• 3.2. Fluidifiers and/or deodorisers
• 4. Treatments
• 4.1. Physico-chemical treatments
• 4.2. Biological treatments
• 5. Post-treatments
• 5.1. Pooling
• 5.2. Green filter
• 5.3. Physico-chemical
• 6. Integral treatments
• 7. Costs of operation
• 8. Small and large equipment
• 9. Use and maintenance

Chapter 3 Solid and liquid manure storage

• 1. Introduction
• 2. Collection and storage systems
• 3. Pits and basins
• 3.1. Constructive characteristics
• 3.2. Tanks and conduits
• 3.3. Sealed basins
• 3.4. Coverage
• 3.5. Emptying
• 4. Storage capacity

Second part. Agriculture and fertilisation with liquid pig manures

Chapter 4 Fertilising value

• 1. Introduction
• 2. Crop needs
• 3. Contributions of soil and liquid pig manures
• 3.1. Of soil
• 3.2. Of liquid pig manures
• 4. Chemical composition of pig's manure

Chapter 5 Calculation of the contribution of nutritive elements from liquid pig manures and the dose of liquid manure to be applied.

• 1. Introduction
• 2. Calculation of the contributions of pig's manure
• 2.1. Calculation criteria
• 2.2. Calculation methodology
• 3. Dose calculation
• 4. Example calculations of the application dose

Chapter 6 Guidelines of use from average regional data

Third part. The economic value of liquid pig manures as a fertiliser

Chapter 7 Model for estimating the annual costs associated with liquid pig manure management

• 1. Introduction
• 2. Estimate of annual liquid manure production
• 3. Annual cost of liquid manure management
• 3.1. Cost of storage in the operation facilities
• 3.2. Transport costs
• 3.3. Other waste management costs

Chapter 8 Model for estimating the associated costs of fertilisation: liquid pig manures and mineral compost

• 1. Introduction
• 2. Comparative study of the costs of fertilisation
• 2.1. Cost of application
• 2.2. Cost of the fertiliser
• 2.3. Total cost of fertilising
• 2.4. Comparison of the costs associated with fertilisation with or without liquid manure

Chapter 9 Numerical examples of the calculation of the costs of fertilising with liquid manure and/or mineral compost

• 1. Example 1. Fertilisation of a crop of spring corn with liquid manure point applications
• 1.1. Preliminary data
• 1.2. Calculation of the dose of fertiliser
• 1.3. Calculation of the costs of fertilising
• 1.4. Comparison of the costs associated with fertilisation with or without liquid manure
• 2. Example 2. Fertilising a crop of winter barley with annual applications of liquid manure
• 2.1. Preliminary data
• 2.2. Calculation of the dose of fertiliser
• 2.3. Calculation of the costs of fertilising
• 2.4. Comparison of the costs associated with fertilisation with or without liquid manure
• 3. Example 3. Fertilising a spring crop with annual applications of liquid manure
• 3.1. Preliminary data
• 3.2. Calculation of the dose of fertiliser
• 3.3. Calculation of the costs of fertilising
• 3.4. Comparison of the costs associated with fertilisation with or without liquid manure
• 4. General considerations of the examples

Fourth part. Technical guidelines on the management and application of liquid pig manures

Chapter 10. Technical guidelines

• 1. The management of solid and liquid manure in stockbreeding operations
• 2. Agricultural application of liquid pig manures

Glossary.