NL7307294A - Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water - Google Patents

Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water

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Publication number
NL7307294A
NL7307294A NL7307294A NL7307294A NL7307294A NL 7307294 A NL7307294 A NL 7307294A NL 7307294 A NL7307294 A NL 7307294A NL 7307294 A NL7307294 A NL 7307294A NL 7307294 A NL7307294 A NL 7307294A
Authority
NL
Netherlands
Prior art keywords
water
reverse osmosis
preoxidising
brackish
impurities before
Prior art date
Application number
NL7307294A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to NL7307294A priority Critical patent/NL7307294A/en
Publication of NL7307294A publication Critical patent/NL7307294A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation

Abstract

Feed water filtered through a sand bed is preheated by pure water from the reverse osmosis plant. It is further heated by water from the oxidiser and mixed with commercial oxygen at 40-110 atm. The temp. in the oxidiser is 250-300 degrees C. The pressure is used for the reverse osmosis which is pref. done at 40-100 degrees C to reduce the viscosity. Preremoval of organic and microbiological impurities reduces fouling, destroys persistent poisons which would remain in the waste water and allows ion exchange of the waste water to remove heavy metals.
NL7307294A 1973-05-24 1973-05-24 Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water NL7307294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7307294A NL7307294A (en) 1973-05-24 1973-05-24 Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7307294A NL7307294A (en) 1973-05-24 1973-05-24 Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water

Publications (1)

Publication Number Publication Date
NL7307294A true NL7307294A (en) 1974-11-26

Family

ID=19818943

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7307294A NL7307294A (en) 1973-05-24 1973-05-24 Preoxidising impurities before reverse osmosis - of brackish or salt water to produce drinking water

Country Status (1)

Country Link
NL (1) NL7307294A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444008A1 (en) * 1978-12-15 1980-07-11 Osaka Gas Co Ltd PROCESS FOR TREATING AMMONIA-CONTAINING WASTE WATER USING AN OXIDATION REACTION
EP1018489A3 (en) * 1999-01-07 2000-09-06 Nippon Shokubai Co., Ltd. Method for treating waste water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444008A1 (en) * 1978-12-15 1980-07-11 Osaka Gas Co Ltd PROCESS FOR TREATING AMMONIA-CONTAINING WASTE WATER USING AN OXIDATION REACTION
EP1018489A3 (en) * 1999-01-07 2000-09-06 Nippon Shokubai Co., Ltd. Method for treating waste water

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