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GB1399599A - Water treatment apparatus - Google Patents

Water treatment apparatus

Info

Publication number
GB1399599A
GB1399599A GB2447872A GB2447871A GB1399599A GB 1399599 A GB1399599 A GB 1399599A GB 2447872 A GB2447872 A GB 2447872A GB 2447871 A GB2447871 A GB 2447871A GB 1399599 A GB1399599 A GB 1399599A
Authority
GB
United Kingdom
Prior art keywords
inlet
ejector
inlets
blades
mixing
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2447872A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORWICH
Original Assignee
NORWICH
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 by NORWICH filed Critical NORWICH
Priority to GB2447872A priority Critical patent/GB1399599A/en
Publication of GB1399599A publication Critical patent/GB1399599A/en
Priority to GB3833975A priority patent/GB1477557A/en
Priority to US05/807,932 priority patent/US4122031A/en
Expired legal-status Critical Current

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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/686—Devices for dosing liquid additives

Landscapes

  • Chemical & Material Sciences (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

1399599 Mixing apparatus NORWICH LORD MAYOR ALDERMAN & CITIZENS OF 15 June 1972 [24 June 1971 23 March 1972] 24478/72 and 24479/72 Divided out of 1399598 Heading B1C Mixing apparatus for making a complex polymeric alkali metal-aluminium silicate soluble in hydrochloric acid for use as a coagulant comprises a mixing chamber 4, three inlets 14, 20, 26 for liquids, an outlet 5 spaced from the inlets and leading to an ejector 6, and means 7 within the chamber for mixing under high sheer. The means 7 may be a three-bladed stirrer in the proximity of the inlets rotated at a speed in excess of 1000 rev/min; in a modification (Fig 4, not shown) it is a rotor with blades (54) having an angle of 10‹-20‹ to the horizontal, surmounted by a stator having blades (53) with an angle of 10‹-20‹ to the vertical. There may be three, six or other number of stator and rotor blades. Preferred dimensions for the apparatus are recited. As shown, the apparatus is duplicated, only one being in use at a time. In operation water is supplied to the inlet 14 through a flow meter (13, Fig 2 not shown) having a needle valve control; sodium silicate to inlet 20 through a control valve 81; and aluminium sulphate to inlet 26 through control valve 24, the product being mixed with raw water to be treated in ejector 6. A time control 40 at intervals doses the water supplied to inlet 14 with hydrochloric acid, from container 43 to dissolve any solids formed. A water treatment plant, (Fig 5 not shown), including the apparatus, has a pump (61) supplying raw waiter to the ejector 6, a sedimentation plant (63) and filtration plant (64); a vertical sludge blanket or horizontal sedimentation device may be used.
GB2447872A 1971-06-24 1971-06-24 Water treatment apparatus Expired GB1399599A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2447872A GB1399599A (en) 1971-06-24 1971-06-24 Water treatment apparatus
GB3833975A GB1477557A (en) 1971-06-24 1975-09-18 Process compositions and uses of silicate products
US05/807,932 US4122031A (en) 1971-06-24 1977-06-15 Complex alkali metal-metal silicate material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2973771 1971-06-24
GB2447872A GB1399599A (en) 1971-06-24 1971-06-24 Water treatment apparatus
GB2447972 1972-03-23

Publications (1)

Publication Number Publication Date
GB1399599A true GB1399599A (en) 1975-07-02

Family

ID=27258345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2447872A Expired GB1399599A (en) 1971-06-24 1971-06-24 Water treatment apparatus

Country Status (1)

Country Link
GB (1) GB1399599A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016097A (en) 1975-10-22 1977-04-05 Anglian Water Authority Process and apparatus for forming silicate products
FR2453107A1 (en) * 1979-04-03 1980-10-31 Degremont Prepn. of silico aluminate suspension used as flocculant - from sodium silicate and aluminium hydroxy chloride

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016097A (en) 1975-10-22 1977-04-05 Anglian Water Authority Process and apparatus for forming silicate products
FR2453107A1 (en) * 1979-04-03 1980-10-31 Degremont Prepn. of silico aluminate suspension used as flocculant - from sodium silicate and aluminium hydroxy chloride

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee