Marine Resources Technologies

About us

Product & Service

Tel: 852-26902662

e-mail: marineresources0375@yahoo.com

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Company's Products & Services :
(Since 1995)

(A) Environmental and sustainable :
  I.   Treatment system & equipment
  II. Wastewater treatment
  III. Chemical wastes treatment & wastes recycling
  IV.   Application of Microbial Culture/Enzymes
  V. Air Quality & Confined Spaces
VI.   Specialized water treatment
  VII. Aquaculture, Industrial & Commercial
applications of microbes

(B) Natural product - Microalgae
(Health, Pharmaceutical & Industrial
applications of micro-algae) :
  I. Various marine micro-algae
II. Products from micro-algae
III. Applications of micro-algae in aquaculture,
health & pharmaceutical and industrial areas


(A)  Environmental and sustainable :
I. Treatment system & equipment
a. Equipment & treatment units by the application
   of micro-bubbles :
1. Air Flotation Unit – Saturator
2. Air Blower – Fine bubble membrane diffuser
3. Air compressor - Fine bubble membrane diffuser

Applications :
1. Increase of oxygen content for biological treatment.
2. Removal of oil & grease enhanced with chemicals
3. Reduction of Suspended Solids, COD & BOD with
   chemicals.

Various heavy metals :
Ni, Cu, Cr, Pb, Sn, Cd, Li, CN.

Air Flotation (DAF-Saturator, Air-Blower, Ozone Generator,
Fine Bubble Membrane Diffuser), Mixer, Recycle, Biofilter,
pH & Cl₂ Controller & Metering Pump; Portable Test Kit &
Meter [ pH, Oxygen, Ozone, Chlorine,
Heavy Metals, i.e. Ni, Cu, Cr, Ag, Zn; CN & Pollutants

(NH₃, NO₂^-, NO₃^- & PO₄^3-)].

Air-Flotation Unit - Saturator :
i. Applications for trade of :
1. Restaurant, hotel & domestic
2. Food processing
3. Textile-Garment, Knitting & Weaving and Dyeing
& Finishing
4. Petrol filling station & car washing

ii. Settlement of water quality for :

1. Oil & Grease
2. Suspended Solids
3. COD
4. BOD

Air Blower and Air Compressor :

Air Diffuser :

Specific ion meters :

Dissolved oxygen (DO) meter :

pH meter :

Salinometer :

Metering pump :

b. Instantaneous reaction :
i. Chemical Reaction Tank
Diffused air
Mixer

ii. Automatic metering pump

c. Energy saving & cost effective treatment units :
i. Elimination of large solids :
Automatic Sliding Screener

ii. Sludge removal :
Bottom sludge removal without scrubber/sludge pump

II. Wastewater treatment :
Water quality analysis, assessment and wastewater treatment
(Solution to WPCO - O & G and TES – COD ) for ：

Commercial :
TES, O & G for Restaurants & Hotels.

Industrial :
   Cyanide & Heavy Metals removal for Electroplating
   & Metal ; Colour removal for Dyeing & Finishing;
   BOD, COD & SS for Food Processing; Paper Mill;
   Tannery; O & G removal for Car Washing & Petrol
   Filling Station (Automobile).

Domestic :
Culture of micro-organisms & removal of E.coli by
Ozonation or Chlorination.

Some Job References :
Wastewater Treatment of Food Processing & Restaurant :
a. Fairwood Holdings Ltd. : 1995
Restaurant wastewater treatment & study
b. Happy Dragon Recreation Park : 1996-2001
   Main contractor for the diversion of drainage system,
   wastewater treatment plant and its management.
c. Hong Kong Yamasaki Baking Co.Ltd. : 1996
   Biological treatment of trade effluent
d. Wah Sun Beancurd Factory : 1998-2001
   Main contractor of wastewater treatment
   (both chemical & biological).
e. Shun Tin Restaurant : 1998
   Main contractor of trade effluent treatment
f. CLP Power Hong Kong Limited : 2000-2006
g. Swire Properties Services Ltd. : 2000-2004
h. Wai Fat Beancurd Factory : 2001-2003
Main contractor of wastewater treatment
   (both chemical & biological).

Wastewater Treatment of Food Processing & Restaurant :
Examples :   Happy Dragon Recreation Park :

Wah Sun Beancurd Factory :

   Shun Tin Restaurant :

Heavy metals and coloured wastewater treatment :
a. Hong Kong Fujidenki Co. Ltd. (1996-1997) :
Reduction of heavy metals from trade effluent.
b. Dainippon Ink in China-DIC Colour Zhongshan (HK) Ltd.
     (1996-1997) :
Chemical and biological treatment for trade effluent.
c. Hip Cheong Electroplating Factory
     (via PolyU) - 1997-2002 :
Main contractor for heavy metals removal
d. Hong Kong Correctional Services Department : 2007- Now
Main contractor for the wastewater treatment of the
     laundry workshop of Tai Lam Centre for Women

Heavy metals and coloured wastewater treatment :
Examples :
Hip Cheong Electroplating Factory :

Treatment of laundry effluents for Tai Lam Centre for Women :

Domestic wastewater treatment :
a. Tai Tam Garden, 1996-1997 :
Management, water quality control and effluent treatment
     for the domestic sewage treatment plant.
b. The University of Hong Kong, 1997-1998 :
Main contractor of biological treatment of
     domestic wastewater.
c. Wah Sun Beancurd Factory and Quarter, 1997-2001 :
Main contractor of wastewater treatment
     (both chemical & biological).
d. Wai Fat Beancurd Factory and Quarter, 2001-2003:
Main contractor of wastewater treatment
     (both chemical & biological).
e HUD Group, 2002 – Now :
Chemical & biological treatment of sewage
f. Pearl Island Garden, 2002-2004 :
Main contractor for the upgrade of biological treatment
     plant of domestic wastewater & its maintenance.

Domestic wastewater treatment :
Examples : The University of Hong Kong :

HUD Group :

     Pearl Island Garden :

III. Chemical wastes treatment
     and wastes recycling :
A. Chemical wastes :
Physico- chemical and biological treatment; Handling, packaging & disposal

B. Waste recycling :
Floating sludge collected from grease trap of restaurant & hotel & spent frying oil can be recycled. The former can be recycled as a biodiesel & fertilizer while the latter can be converted to clear water for various applications

A. Chemical wastes :
a. Handling, packaging & disposal :
i. Tsun Tsun Trading Co., Ltd. : 1997
Chemical wastes handling,packaging & disposal
ii. Medipharma Ltd. : 2002
Chemical wastes handling,packaging & disposal
iii. Ping Shek Estate : 2007-2009
Hydrocarbon & Petroleum treatment

b. Chemicals : Supplies & applications for waste
     & wastewater treatment.
i. Enviropace Ltd. : 1998-2003
For the supplies of chemicals and provide technical
      advice for the treatment of wastes  & wastewater

B. Waste recycling :
i. Better Environment of Hong Kong : 1999-2001
Floating sludge in grease trap & spent frying oil
   converted into bio-diesel
ii. CLP Power Hong Kong Limited : 2002-2003 :
Chemical treatment enhanced with air flotation for the
      storm water contaminated with insulation oil

Application of microbes for Hydrocarbon & Petroleum treatment : 07- 09

Diesel leaked into ground water from the underground oil tank of Ping Shek Restaurant. Physical treatment enhanced with centrifugal pump & separator to recover the leaked oil & separate it from ground water. Bioconversion & separation of the volatile black oil by microbes promoted with water & aeration into non-toxic brown sludge.

IV. Application of Microbial Culture/Enzymes -
Job references of microbial applications - A list of the companies & their locations :

Name of Companies and their addresses	Date of application
(I) Domestic & Toilet Waste and Wastewater Treatment :
1. Teemway Engineering Ltd., Kowloon Bay : Toilet Treatment	10/2000 - 2002
2. Industrial Waste Disposals Ltd., Shatin, N.T. : Toilet Treatment	11/2000 - 2003
3. Ha Yeung Sun Chuen, Sai Kung, N.T. : Domestic Wastewater	10/2002 - 2004
4. Ngau Pei Sha Village, Sik Lik Yeun, Shatin, N.T.: Domestic Wastewater Treatment	2002 - 2003
(II) Wastewater Treatment for Restaurant, Hotel and Food Processor :
1. Senate Management Services Ltd., Fo Tan, N.T. (Wastewater treatment of food processor) : a. Park’n Shop - Maritime Square, Tsing Yi, N.T. b. Park’n Shop -Riviera Garden, Tuen Wan, N.T. c. Park’n Shop –Kingswood Ginza, Tin Shui Wai, Yuen Long, N.T.	12/2000 - 12/2001
2. CLP Power Hong Kong Ltd.(Wastewater treatment for cookery training centre) : a. DeLight Centre, Dragon Centre, Shamshuipo, Kowloon. b. Fu Wah Customer Services Centre, Tsuen Wan, N.T. c. Tsimshatsui Customer Services Centre, Tsimshatsui, Kowloon	4/2001 - 5/2002 9/2001 - 2006 5/2002 - 2006
3. Pacific Place : Queensway, Central : a. Ye Shanghai Restaurant b. La Cite Restaurant c. Peking Garden	9/2000 - 2004 9/2000 - 2004 9/2000 - 2004
4. CityPlaza, Taikoo Shing, Hong Kong (Wastewater treatment of restaurants) : ~5 restaurants	2000 – 2004
5. CityGate, Tung Chung, Lantau Island (Wastewater treatment of restaurants) - List of the restaurants : a. Maxim’s b. Easterngate c. Delifrance d. Catstreet e. MacDonald f. Golden Siam g. Park’n Shop	8/2001 – 2002
6. D’Aguilar 26 Bar, 26 Lan Kwai Fong, Central : Wastewater treatment of restaurant & brewery	10/2002 – 2003
7. Shangri-La Hotel, Shenzhen & Futian, China : Wastewater treatment of sewer, grease trap, septic tank & refuse station.	10/05 – 2010
8. Red Dragon Fly Restaurant, Tai Po, N.T. : Wastewater treatment of restaurant	1/06 – 2009

V. Air Quality & Confined Spaces :
a.   CLP Power Hong Kong Limited : 2001
b.   Application of microbial cultures/enzymes to grease trap :
(Shenzhen Shangri-La Hotel) : 2005-2009

VI. Specialized water treatment ：
Water quality analysis, assessment & water treatment
   (O₃, Cl₂, Salinity & E.coli) for : Swimming pool,
   drinking water, cooling system and aquaculture
   (Lobster, Fish, Shrimp and Oyster).

Water monitoring & assessment for various companies:
Job references :
a. Various companies (Please refer to our full text)
b. China Light & Power Co. Ltd. (1997) :
Main contractor for the water quality monitoring
   and assessment
c. The Hong Kong Jockey Club (1998-2001) :
Main contractor for the water quality monitoring
   and assessment of swimming pool.
d. The Hong Kong Jockey Club (1998-2001) :
Water quality analysis and assessment of drinking water
e. The Hong Kong Jockey Club (1996-1999) :
Seafood water treatment & monitoring :
Management, monitoring and control of marine fish,
   lobsters and oysters
f. Fairview Park (2002-2003) :
Improvement of water quality for the Central Lake

g. Government Dockyard (1998- 2005)
Water quality analysis and assessment of drinking water

VII. Aquaculture, Industrial &
   Commercial applications
   of microbes

a.   Aquaculture :
Job references :
1.Agriculture & Fisheries Department (1976-1990) :
   Culture, hatchery, nutrition & disease for freshwater & marine fish
2.Kin Ngai Fish Farm (1990-1995) :
   Culture & hatchery for marine fish
3.Overseas Chinese Malaysian Farm (2005) :
   Culture & hatchery for fisheries & algae

Spawning of fresh water fish :

Catfish :

Snakehead :

Marine fish and Spawning of Sea-bream :

Sea-bream :

Hatchery of Sea-beam

Marine fish and Spawning of Grouper :

Grouper :

Hatchery of Grouper

b.   Microbes in hatchery :
Micro-organisms :   Cultivation & sales for Micro-algae,
   Ciliates, Rotifers & Copepods.

Freshwater Micro-Algae :

Marine Micro-Algae :

Freshwater Rotifer :

Marine Rotifer :

Freshwater Copepod :

Marine Copepod :

c.    Microbes for wastewater treatment :
Micro-organisms :   Cultivation & sales for Bacteria,
Micro-algae, Ciliates, Rotifers,
   Nematodes & Copepods.

(B)  Natural product - Microalgae
  (Health, Pharmaceutical & Industrial
applications of micro-algae) :

I.   Various marine micro-algae :
Marine micro-algae rich in polyunsaturated fatty acids (ω-3), polymer & pigments including
Browm, Red, Yellow-Green and Green microalgae

Red micro-algae :
i. Rich in EPA & AA
ii. Produce sulphated extracellular polysaccharides
iii.Phycoerythrin extracted as a fluorescent dye

Yellow-Green micro-algae :
i. Rich in EPA
ii. AA & GLA also present
iii.Produce multi-vitamins
iv.Produce exopolymer ?

Diatom micro-algae :
i. Rich in EPA
ii. Rich in brown pigments of Fucoxanthin & Violaxanthin
iii.Produce multi-vitamins
iv.Produce sulphated exocellular polysaccharides for
pharmaceutical applications

Green micro-algae :
i. Rich in ω-3 polyunsaturated fatty acids
ii. Rich in pigment Chlorophyll & Lutein
iii.Produce multi-vitamins especially B₁₂

II.   Products from micro-algae :

i. Natural oil for :
   A. As renewable and sustainable energy - Biofuels
B. Polyunsaturated Fatty Acids :
1. EPA rich marine algae :
a.      Yellow-Green algae
b.      Diatom c.     Red algae
2. AA rich marine algae :
a.      Red algae b. Yellow-Green algae
3. ω-3 rich marine algae :
a.      Green algae

ii. Natural pigments for :
  1. Human and animal health & pharmaceuticals and give
     bright appearance :
     Carotene, Chlorophyll, Fucoxanthin, Zeaxanthin,
     Lutein & Astaxanthin etc.
2. Phycobiliproteins :
As Natural Fluorescent Phycofluor for medical
   diagnosis :
Phycoerythrin, Phycocyanin, Allophycocyanin
   from Red algae & Phycocyanin from
   Blue-green algae.

iii. Natural Polymer for :
Extra-cellular & Sulphated polysaccharides for
pharmaceutical applications

III. Applications of micro-algae in aquaculture,
health & pharmaceutical and industrial
areas :

i. Aquaculture :
We have succeeded in rearing marine larval fish (i.e Seabream) from fertilized egg with the food chain culture of marine micro-algae, rotifer, copepod /Artemia & minced fish meat and then put the fingerlings into fish cage since 1976. We have concluded that the marine Chlorella is nutrition rich enough to rear-up the larvae to fingerling size because a large amount of the latter has been produced. The high mortality before 30^th day is not due to malnutrition but for the toxicity of the metabolite accumulated in culture media. Later, some scientists find out ω-3 in the food chain (i.e. Some marine micro-algae & Harpacticoid copepods can synthesize) play a major role in nutrition for larviculture & mariculture.

ii. Health & Pharmaceutical Applications :
Fish oil is rich in ω-3 but fish itself cannot synthesize them so that it must have been obtained from the food chain. Fish liver oil has been utilized as health additive for years and it has been found out that the Greenland Eskimos (EPA level in blood higher than other countries) seldom get coronary heart disease because they consume mainly on fisheries. Recently, apart from health products, ω-3 polyunsaturated fatty acids have been tested in many medical applications, especially for EPA. They can regulate normal cardiac function & reduce blood pressure, promote immunity activity, inhibit certain enzymes to protect prostate, reduce cholesterol level in serum, anti-agglomerate for blood cells & platelets and blood clot in blood vessel, improve & release for arthritis pain and increase cancer patient’s weight.

Natural pigments like β-Carotene & Chlorophyll keep animals in health condition while accessory pigments such as Zeaxanthin, Lutein & Astaxanthin are effective for colour development in animals like fish, bird, cattle & others. The carotenoids of pigmented natural fruits & vegetables are regarded as natural antioxidants & cancer prevention. The sources of them may be obtained from algae & higher plants (leaves, fruit, root, seed & oil). The fucoxanthin of brown algae has recently been demonstrated to be effective for growth inhibition of human cancer cells in liver (Das et al., 2008), colon (Das et al., 2005) & prostate (Kotake-Nara et al., 2005).

Sulphated exopolysaccharide produced by Phaeodactylum tricornutum and Porphyridium sp. has been demonstrated to be effective for antibacterial (Guzman-Murillo et al., 2007; Guzman- Murillo & Ascencio, 2000) & antiviral activity (Raposo et al., 2014; Huleihe et al., 2001). Sulphated polysaccharide of brown algae called Fucoidan (Kamerycah Inc.- Nov, 2008) has been produced to treat various cancers.
The phycobiliproteins such as Phycoerythrin, Phycocyanin, Allophycocyanin from Red algae & Blue-green algae have been extracted for the applications of medical diagnosis (Phycofluor - Fluorescent probe) as a fluorescent dye (fluorochrome) for Apoptosis analysis, Cell function assay, Immuno-fluorescent assay for cell surface marking, cell sorting, conjugating to other biomolecules such as antibodies, DNA & RNA specific sequences in Flow Cytometry. It is stable for a wide range of pH 5-9 environment and gives a large stoke shift without denaturing.
Superoxiide dismutase has been isolated from Porphyridium cruentum culture medium for the application as free radicals scavenger in food & pharmaceutical industry.

iii. Industrial applications :
Microalgae have been studied extensively in other countries for their applications as health & pharmaceutical, medical diagnosis, biofuel and industrial products, aquaculture and other fields. Certain microalgae can produce expolymer in mass production so that the polymer may be used for industrial various applications.

1. Application of natural polymer for cell harvest :
Extra-cellular polysaccharides of certain microalgae may be utilized for industrial, commercial (i.e. Cosmetic) and pharmaceutical (sulphated polysaccharides) applications. The natural polymer provides cost efficient, health & safety method in mass harvesting of microbial cells with natural polymer. One of major reasons is that traditional harvesting methods such as centrifugation, filtration and chemical separation are not cost effective and health safe. This barrier may be solved by using the algal polymer. It is cost effective for energy & time saving, health & safety and environmentally friendly with no chemicals involved.

2.     Properties and applications of exopolymer :
a. Physical properties of natural polymer :
  The extra-cellular polysaccharide is stable to heat
   (2-80˚C) & works well at a wide range of pH (1–12).
   It gives high viscosity of “thick”.

b.     Fields of application :
        (i)     Dewatering for food preparation like agar.
        (ii)    As a natural flocculant for concentrated solution.
        (iii)   Water & wastewater treatment.
        (iv)   Pharmaceutical applications for its sulphur group
   (Antivirus reagent, i.e. Heparin)

iv. Products sold in the market :

In fact, the products come from micro-algae (i.e. Spirulina & Chlorella) have been introduced to the market for years. Though most fresh water micro-algae do not have EPA, they have been produced by Taiwan & Japan as tablets and sold as health products. Spirulina products from various countries have been on sales for health supplement & pigmentation of fishes. Triomega (Extracted from Cod liver oil), produced by Seven Seas Ltd.(UK) is concentrated in EPA & DHA enriched with vitamins (i.e. A, D & E), for the relief of arthritis pain & maintenance of healthy joints for human, has been on sale in the market.
Kamerycah Inc.(2015) & Sea Herb(2016) produce Fucoidan (Polysaccharides of brown algae) products for the natural health treatment of various cancers.
Companies such as Invitrogen, Prozyme, Europa, Columbia Biosciences & others have developed Flow Cytometry & Immunoassay kits on the medical market while the Japanese DIC has patented for the colour extraction from Spirulina biliprotein (Phycocyanin) for food colouring.
The freshwater Porphyridium extra-cellular polymer has been used for crude oil recovery.

Saturator

Air Blower

Air-Compressor

Fine Bubble Tubular Membrane Diffuser

Specific ion meters

Dissolved oxygen meter

2-point calibration pH Meter

Salinometer

Metering Pump

Chemical Reaction Tank with air flotation

Mixer for chemical treatment

Energy saving Automatic Sliding Screener

Energy saving Automatic Sliding Strainer

Sedimentation Tank : Bottom sludge removal without scrubber/sludge pump

Restaurant : Oily waste floating on the surface of grease trap

Restaurant : Treated oily waste floating on the surface

Restaurant : A clear water sample collected from the last chamber

Restaurant : Turbid white effluent turns clear after chemical treatment

Operation workshop of the beancurd factory

Bean curd : Biological & chemical treatment of the effluent

Bean curd : Effluent turns brown under normal growth

Restaurant :
Entry of influent

Restaurant :
Chemical treatment

Air-Flotation Unit : Saturator

Restaurant : Turbid white effluent turns clear after chemical treatment

Nickel plating in the workshop

Electroplating : Chemical treatment Tank, Resin and Sedimentation Tank

Laundry : Chemical Reaction Tank

Laundry : Aeration & Chemical dosing units

Chemical treatment of laundry effluent : Floating sludge generated in the 1st chamber of the Sedimentation Tank

Laundry : A clear water sample collected in the Sedimentation Tank

Wastewater treatment : Effluent treatment plant of the University of Hong Kong

Wastewater treatment : Biofitration Tank with biofilters

Wastewater treatment : Chlorine metering pump and Chlorine control system

Wastewater treatment : Chlorination Tank

Wastewater treatment : Automatic Sliding Screener and Chemical Reaction Tank

Wastewater treatment : Aeration Tank gives brown colour under normal growth

Wastewater treatment : Sedimentation Tank - Bottom sludge removal without scrubber/sludge pump

Wastewater treatment : Clear supernatant separated while brown sludge settled.

Wastewater treatment : RBC Tank

Wastewater treatment : Aeration Tank with diffused air

Wastewater treatment : Automatic bridge sludge skimmer & dragger in Sedimentation Tank

Wastewater treatment : Chlorine metering pump and Chlorine control system in Chlorination Tank

Diesel : Dark oil turns partially brown while microbes found on 15.12.08

Diesel : Dark oil further turns to brown on 23.12.08

Diesel : Separation & turn brown on 6.1.09

Diesel : Slides for microscopic inspection

Diesel : Only thin dark oil layer remains on surface on 2.2.09

Diesel : The aerobic culture nearly turns into brown solution while the control (Anaerobic) remains the same on 12.2.2009

Source of toxic gas : The Chinese tea shop and CLP Customer Services Centre

Source of toxic gas : The four typical Chinese teas

Source of toxic gas : Identify the sources of toxic gas

Gas monitors used for the identification of sources & species of gas

Hotel : Automatic metering pump system

Hotel : Heavy oily floating sludge in grease trap

Hotel : Liquefaction of the oily layer after microbial treatment

Hotel : Liquefaction of the oily layer after microbial treatment

Freshwater fish : Thousands of Catfish larvae

Freshwater fish : Catfish larvae reared for 8 days.

Freshwater fish :
Snake Head larvae

Freshwater fish : Snake Head larvae reared for 9 days

Marine fish :
Black Sea-bream

Marine fish :
Red Pargo

Marine fish :
Black Sea-bream fertilized eggs

Marine fish : Black Sea-bream larva reared for 20 days

Marine fish :
Red Grouper

Marine fish :
Green Grouper

Marine fish :
Hatched fertilized egg of Red Grouper

Marine fish :
Red Grouper larva reared for 30 days

Freshwater
Micro-Algae :
Selenastrum (Left);
Chlorella (Right)

Marine microalgae :
Chlorella

Flagellate

Ciliate : Euplotes feeds on bacteria & microalgae

Freshwater Rotifer with egg-bearing

Marine Rotifer

Freshwater
Copepod : Daphnia

Freshwater Copepod with egg-bearing

Marine Copepod

Marine Copepod :
Nauplius

Marine : A Harpacticoid adult (i.e. Tigriopus)

Marine Copepod : Calanoid

Gram-stained Bacteria:
Coccus & Bacillus

Vorticella

Wastewater treatment : Rotifer

Wastewater treatment : Ciliate

A brackish wastewater treatment plant Nematode

Marine micro-algae rich in polyunsaturated fatty acids (ω-3), polymer & pigments : Brown, Red,Yellow-green & Green microalgae

Microalgae : Porphyridium sp. has been identified rich in EPA

Nannochloropsis sp. & Monodus sp. have been identified rich in EPA

Phaeodactylum has been identified rich in EPA & Fucoxanthin and with sulphated extracellular polysaccharides that they have been demonstrated effective for various medical treatments.

Microalgae : Chlorella has been identified rich in n-3 polyunsaturated fatty acids

Microalgae : Paste of Phaeodactylum tricornutum cells

Microalgae : Precipitation of the Phaeodactylum tricornutum culture exopolysaccharide

Clear supernatant obtained after flocculation while microalgal cells harvested after adding the natural polymer; The natural algal polymer solution shown on the right.

Microalgae : Polymer powder recovered