Gas monitoring system for a building: how 11 sample heads, three analysers and a 5% LEL alarm protect occupants.
Organics Articles
Organics Group has spent more than thirty years turning ammonia-laden wastewater, landfill gas, organic and food waste, palm oil mill effluent into revenue with biogas flaring technology deployed on over 300 projects worldwide, commissioned across Europe, Asia, the USA and Oceania. This collection brings that work out of the project archive written for the engineers, regulators and operators who decide which technologies is going to solve their problems.
Open Landfill Gas Flare for 1,500 m³/h: Materials, Flame Detection and Controls
What goes into a 1,500 m³/h open flare package for South-East Asia: tip material, UV flame sensing, selector modes and a 300 mbar blower.
Landfill Gas Flare Safety and Monitoring Features: A Specification Checklist
A 1,000 m³/h enclosed flare for Australia shows which safety and monitoring features to put into a flare specification, and why.
How an Elevated Flare Handles Weak Landfill Gas
Elevated flare ignition logic explained: retry timers, vent mode and continuous run for sites where landfill gas quality varies.
POME Sampling for Biogas: What a 10-Day Study Shows
What a 10-day palm oil mill effluent sampling study reveals about biogas potential, with COD and pH results from two mills and how to read them.
Two Ammonia Stripping Lines, One Thermal Destructor: Treating 2,500 m³/day of Leachate
How two independent stripping lines share one destructor to treat 5,300 mg/l ammonia leachate down to under 150 mg/l, using landfill gas as fuel.
How to Size a Landfill Gas Flare When Site Data Is Limited
Size a landfill gas flare from a modelled gas production curve: stated assumptions, 75% collection efficiency, a 30% margin and a 5:1 turndown explained.
Landfill Mining to Energy: A Phased Pyrolysis Plant
Landfill mining to energy: how buried waste becomes SRF for a 12.5 MW phased pyrolysis scheme, with process steps, buffers and what goes back to landfill.
Landfill Mining for Waste to Energy: From Dump to 1 MW
A 1 MW pyrolysis scheme fed by mined, stabilised landfill waste, with the front end sized stage by stage.
Chicken Waste: Anaerobic Digestion Plus Pyrolysis
Chicken waste anaerobic digestion with pyrolysis: a two-route design for a poultry site, 60 t/day of manure, drying digestate and a 1.85 t/h pyrolyser.
Biomethane Liquefaction Plant: How a 60 Tonne-per-Day Liquefier Is Specified
Biomethane liquefaction plant: purification, nitrogen cycle, power and utilities for a 60 tonne-per-day liquefier, and what is guaranteed.
Gas Booster Station for Landfill Gas Engines, with a Standby Flare
Landfill gas booster station design: why a 2,500 m³/h booster at 300 mbar is paired with a smaller 500 m³/h flare.
Biogas Flare at 250 m³/h With a Pressure Bypass
How a 250 m³/h elevated biogas flare uses a booster bypass and pressure switches to save energy when the gas is already at pressure.
Ammonia Stripping of Landfill Leachate: Sizing a 300 m³/day Plant
How an ammonia stripper takes strong landfill leachate from about 7,000 mg/l to about 1,750 mg/l at 300 m³/day, with steam heat and optional ammonium sulphate recovery.
pH-Driven Ammonia Stripper for Wastewater Containing Hydrogen Peroxide
pH-driven ammonia stripper: cut ammonia from 1,500 to under 40 mg/l with a three-column indoor design plus a hydrogen peroxide polishing reactor.
Landfill Gas Flare Site Survey Checklist: What to Check Before You Specify
What to ask on a pre-tender site visit for a new landfill gas flare, using a council-owned landfill as the worked example.
Leachate Suspended Solids Treatment: Choosing a Filter for Peak Flushes
Leachate suspended solids treatment: compare five filtration options for peaks up to 1,200 mg/l and see why a vortex plus sand filter won.
Emergency Flare for Hydrogen-Rich Syngas: Design Basis and Noise
Hydrogen syngas emergency flare: detonation-rated arrester, port velocity, flame detection and a screening noise estimate for 4,000 Nm³/h.
Methane Stripping from Landfill Leachate with a Four-Chamber Aerated Tank
Methane stripping from landfill leachate: a four-chamber aerated tank takes 500 m³/day from under 30 mg/l to under 0.14 mg/l. How it works.
Ammonia Stripper Off-Gas: Destroy It or Recover It?
What to do with ammoniated air from a stripper: burn it, scrub it with water or scrub it with acid.
Municipal Waste to Biomethane and Power: Dry Fermentation Plus Gasification
A proposal for a city landfill site combines dry-cell anaerobic digestion for compressed biomethane with gasification of the digestate to generate electricity.
Is a 1,200°C Landfill Gas Flare Worth the Extra Cost?
Is a 1,200°C landfill gas flare worth it? Compare the MC and SC designs on temperature, residence time, materials and when each makes sense.
Covered Lagoon or UASB for Palm Oil Mill Effluent?
Covered lagoon, CSTR or UASB for palm oil mill effluent? A worked comparison for a 30 t/h mill, with the biogas and power figures that follow.
Covered Lagoon Biogas for a 60 t/h Palm Oil Mill Boiler
How a covered lagoon digester can turn palm oil mill effluent into boiler fuel, with design figures from a 60 t/h mill and the site findings that changed the plan.
Sludge Reduction by Drying and Pyrolysis: A Small-Scale Design
Wet sludge cannot go straight into a pyrolyser. This small-scale design dries it from 80% to 20% moisture first, then converts it to syngas and ash.