NL7613246A - Concentrating aq. effluents contg. calcium sulphate and glycerol - by spraying into hot gas stream, using insufficient heat to cause complete drying - Google Patents
Concentrating aq. effluents contg. calcium sulphate and glycerol - by spraying into hot gas stream, using insufficient heat to cause complete dryingInfo
- Publication number
- NL7613246A NL7613246A NL7613246A NL7613246A NL7613246A NL 7613246 A NL7613246 A NL 7613246A NL 7613246 A NL7613246 A NL 7613246A NL 7613246 A NL7613246 A NL 7613246A NL 7613246 A NL7613246 A NL 7613246A
- Authority
- NL
- Netherlands
- Prior art keywords
- mixt
- glycerol
- hot gas
- spraying
- gas stream
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A mixt. of effluent water and waste prods. is concd. to a dry solids content which is considerably above the satn. point, by spraying the liq. effluent mixt. into a hot gas stream such that the ratio of (a) the difference in heat content of the hot gas on entry to and exit from the system per unit of time and (b) the amt. of heat required for complete evaporation of the liq. phase in the sprayed mixt. in the same period, is 1. The process is esp. useful for treating effluents such as those obtd. in the edible oil and oilseed processing industry, contg. CaSO4 and glycerol. Due to the low concn., combustion of such wastes requires large amts. of energy. Normal evaporators cannot be used due to the satn. phenomena which occur as the concn. of the mixt. rises. Spray drying cannot be used to severe caking which occurs due to the glycerol content of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7613246A NL7613246A (en) | 1976-11-26 | 1976-11-26 | Concentrating aq. effluents contg. calcium sulphate and glycerol - by spraying into hot gas stream, using insufficient heat to cause complete drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7613246A NL7613246A (en) | 1976-11-26 | 1976-11-26 | Concentrating aq. effluents contg. calcium sulphate and glycerol - by spraying into hot gas stream, using insufficient heat to cause complete drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7613246A true NL7613246A (en) | 1978-05-30 |
Family
ID=19827289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7613246A NL7613246A (en) | 1976-11-26 | 1976-11-26 | Concentrating aq. effluents contg. calcium sulphate and glycerol - by spraying into hot gas stream, using insufficient heat to cause complete drying |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL7613246A (en) |
-
1976
- 1976-11-26 NL NL7613246A patent/NL7613246A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |