Abbreviations

AD  Anaerobic Digestion

AC  alternating current

B  barrel

BSP  Biogas Support Program

C4H10  Butane gas

CH4  Methane gas

C/N Carbon : Nitrogen ratio

CO2  Carbon dioxide gas

CH4  Methane Gas

CHP  Combined Heat and Power

D1 1.5 m3  digester with stirrer

D2 1.5 m3  digester without stirrer

DC  direct current

h  Height [m]

H2  Hydrogen gas

HRT  Hydraulic Retention Time

GHG  Green House Gases

kg  Kilo gram

km  Kilo meter

kj  Kilo Joule

kWh   Kilo. Watt. Hour

L  litter

LPG Liquefied petroleum gas

m  meter

MSW  Municipal Solid Waste

mg  milligram

NMOCs  "non-methane organic compounds"

N2  Nitrogen gas

NIS  New Israeli Shekel

NGO  Non Governmental Organization

OFMSW  Organic fraction of Municipal Solid Waste

OLR  Organic Loading Rate

PERC  Palestinian Energy and Environment Research Center

pH Acidity degree value

PVC  Polyvinyl chloride

PV  devices Photovoltaic

ERC  Energy Research Centre at An-Najah National University

r  Radius [m]

RAS Return Activated Sludge

SRT  Solids Retention Time

TS  total solids

Ta  Auto ignition temperature [0C]

Tb  Boiling point [0C]

Tf  Flash point [0C]

Tm  Melting point [0C]

T  Retention time [day]

UASB  Up flow Anaerobic Sludge Blanket

V  Volume [m3]

VFAs  Volatile fatty acids

Z.A  Zahret Alfingan Landfill

Ρ  Density [kg/m3]

Term Definition

Anaerobic Digestion: (AD) the biological, physical and or chemical

breakdown of animal manure in the absence of oxygen.

Biogas: the gas produced as a by-product of the anaerobic decomposition

of livestock manure consisting of about 60-80 percent methane, 30-40

percent carbon dioxide, and trace amounts of other gases.

Combined Heat and Power: (CHP) a system for producing electricity

while capturing and using heat.

Hydraulic Retention Time :(HRT) average length of time any particle

(liquid or solid) of manure remains in a manure treatment or storage

structure.

Mesophilic :Relating to, or being at a moderate temperature of about 30 to

35 c degrees.

Return Activated Sludge:(RAS) a process by which some of the digester

bacteria are returned to the digester reducing the amount of energy.

Solids Retention Time: (SRT) average length of time any solid particle of

manure remains in a manure treatment or storage structure. This is

calculated by the quantity of solids maintained in the digester divided by

the quantity of solids wasted each day.