利用家禽粪便、纸浆和微藻泥生产甲烷、生物化肥和生物柴油

摘要

本研究以家禽粪便、纸浆、及微藻泥(提取脂类后)为原料,开发小规模可持续利用废弃物工艺来制备甲烷、生物肥料及生物柴油。首先,考查粪便、纸浆、及微藻泥不同混合比例厌氧分解后对甲烷产率的影响,并对产甲烷后的废弃物进行固液分离,固体废弃物作为生物肥料,液体用于微藻(Chlorella vulgaris)培养制备生物柴油。当粪便、纸浆、及微藻泥混合物中碳氮比(C/N)为26:1时,甲烷产率达最大值1045 ml/L/d,占总气体的74％。通过两阶段流加策略培养Chlorella.vulgaris,165 h后,菌体量达9 g/L,胞内油脂浓度为3 g/L。
　　 研究表明,对普通废弃物的利用有望通过培养微藻制备生物柴油达到产业化规模。此外,通过大力宣传利用农业废弃物进行小规模制备生物柴油产业化知识,将有望使微藻制备生物柴油商业化达到更高水平,本研究所取得的进展已表明利用微藻制备生物柴油的可行性以及其在今后所处的它位。

目录

文摘

英文文摘

Chapter 1 Introduction

1.1 General review and Literature review

1.2 Microalgae biofuels-waste liability to profit center

1.3 Microalga Chlorella vulagris cultivation

1.4 Algal biodiesel

1.5 Problem statement and justification of the research

1.6 The main aims

1.7 Literature review for the study

Chapter 2

2.0 Materials and methods

2.1 Biomethane production

2.2 Low and high dilution for varied nitrogen levels in digester substrate

2.3 Digestates

2.4 Alga strain and cell growth conditions

2.5 Supplementation strategy:

2.6 Analytical procedures

2.6.1 Biomethane measurement

2.6.2 Digestate analysis

2.6.3 Algal cell cultivation

Chapter 3

3.0 Result and Discussion

3.1 Biomethane Production

3.2 Dilution and Pre-Treatment

3.3 Assessment of Semi-Solid Digestate as Biofertilizer

3.4.0 Algae production Results

3.4.1 Alga biomass production with and without digestate supplementation;Heterotrophic

3.4.2 Algae production with Two-Stage Supplementation

3.5 Autotrophic and mixotrophic cultivation

3.6.Algal fatty acid and its biodiesel

3.7 Recommendations

Reference

Acknowledgments

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