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2. Zero liquid discharge - Wikipedia

   en.wikipedia.org/wiki/Zero_Liquid_Discharge

   Zero Liquid Discharge (ZLD) is a classification of water treatment processes intended to reduce wastewater efficiently and produce clean water that is suitable for reuse (e.g., irrigation). ZLD systems employ wastewater treatment technologies and desalination to purify and recycle virtually all wastewater received.

3. Low-temperature distillation - Wikipedia

   en.wikipedia.org/wiki/Low-temperature_distillation

   The precipitation of solids is technically intended to allow for zero-liquid-discharge operation (complete ZLD). It is possible to combine the low-temperature distillation process with existing desalination technologies serving as downstream process to increase the water output and reduce the brine generation.

4. Supercritical liquid–gas boundaries - Wikipedia

   en.wikipedia.org/wiki/Supercritical_liquid–gas...

   According to textbook knowledge, it is possible to transform a liquid continuously into a gas, without undergoing a phase transition, by heating and compressing strongly enough to go around the critical point. However, different criteria still allow to distinguish liquid-like and more gas-like states of a supercritical fluid. These criteria ...

5. Critical point (thermodynamics) - Wikipedia

   en.wikipedia.org/wiki/Critical_point...

   The commonly known phases solid, liquid and vapor are separated by phase boundaries, i.e. pressure–temperature combinations where two phases can coexist. At the triple point, all three phases can coexist. However, the liquid–vapor boundary terminates in an endpoint at some critical temperature T c and critical pressure p c. This is the ...

6. Direct vent fireplace - Wikipedia

   en.wikipedia.org/wiki/Direct_vent_fireplace

   To begin the operation of the fireplace unit, the user must turn on the gas supply and ignite the burners. Once this is done, the unit will operate completely autonomously until the gas supply to the burners is shut off. While in operation, convection will cause the hot air in the firebox to rise to the top of the firebox. As the amount of hot ...

7. List of abbreviations in oil and gas exploration and production

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   MDRT – measured depth referenced to rotary table zero datum; MD – measurements/drilling log; MDEA – methyl diethanolamine (aMDEA) MDL – methane drainage licence (United Kingdom), a type of onshore licence allowing natural gas to be collected "in the course of operations for making and keeping safe mines whether or not disused"

8. Thermodynamic diagrams - Wikipedia

   en.wikipedia.org/wiki/Thermodynamic_diagrams

   The three diagrams are constructed from the P–alpha diagram by using appropriate coordinate transformations. Not a thermodynamic diagram in a strict sense, since it does not display the energy–area equivalence, is the Stüve diagram; But due to its simpler construction it is preferred in education. [citation needed]

9. Fireplace - Wikipedia

   en.wikipedia.org/wiki/Fireplace

   Modern open fireplace An outdoor fireplace. A fireplace or hearth is a structure made of brick, stone or metal designed to contain a fire. Fireplaces are used for the relaxing ambiance they create and for heating a room. Modern fireplaces vary in heat efficiency, depending on the design.