| Country | Water treatment | Odour treatment | Chemical scrubber | Gas biological treatment | |
|---|---|---|---|---|---|
| ABU-DHABI |  |
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| ANDORRA |  |
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| ANGOLA | |
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| ARGELIA | |
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| AUSTRALIA | |
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| BANGLADESH | |
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| BELGIUM | |
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| BRAZIL | |
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| CAPE VERDE | |
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| CHINA | |
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| COLOMBIA | |
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| COSTA RICA | |
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| CUBA | |
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| DOMINICAN REPUBLIC | |
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| DUBAI | |
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| ECUADOR | |
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| EGYPT | |
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| EL SALVADOR | |
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| ENGLAND | |
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| FINLAND | |
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| FRANCE | |
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| GABON | |
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| GERMANY | |
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| GREAT BRITAIN | |
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| GREECE | |
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| HONDURAS | |
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| IRELAND | |
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| ISRAEL | |
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| ITALY | |
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| LITHUANIA | |
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| MALAYSIA | |
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| MEXICO | |
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| MOROCCO | |
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| NETHERLANDS | |
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| NICARAGUA | |
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| OMAN | |
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| PANAMA | |
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| PERU | |
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| PORTUGAL | |
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| ROMANIA | |
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| SAUDI ARABIA | |
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| SUDAN | |
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| SWAZILAND | |
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| TAIWAN | |
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| TUNISIA | |
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| UGANDA | |
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| UNITED ARAB EMIRATES | |
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| URUGUAY | |
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| USA | |
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| VENEZUELA | |
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| VIETNAM | |
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