Modifiers matching sorbent:

• dry,
• classical,
• charged,
• solid,
• simple,
• hydrophilic,
• common,
• chemical,
• friable,
• pure,
• porous,
• inorganic,
• powdered,
• natural,
• biodegradable,
• crystalline,
• conventional,
• commercial,
• carbonaceous,
• inexpensive,
• inert,
• liquid,
• fresh,
• polar,
• traditional,
• reactive,
• several,
• subsurface,
• particulate,
• rigid,
• alkaline,

Simple categories matching subsurface:

• structure,
• material,
• construction,
• area,
• installation,
• property,
• sorbent,
• feature,
• soil,
• mineral,
• platform,
• variation,
• component,
• industry,
• condition,
• attribute,
• deposit,
• variable,
• cavity,
• detail,
• stratum,
• data,
• reservoir,
• fluid,
• anomaly,
• item,
• process,
• rock,
• quantity,
• defect,
• system,
• obstruction,
• information,
• change,
• utility,
• object,
• measure,
• body,
• imperfection,
• formation,
• void,
• facility,
• resource,
• separation,
• artifact,
• layer,
• liquid,
• excavation,
• drain,