{"id":29,"date":"2023-03-16T09:35:00","date_gmt":"2023-03-16T09:35:00","guid":{"rendered":"https:\/\/snowstone.co.za\/?page_id=29"},"modified":"2023-04-07T07:30:41","modified_gmt":"2023-04-07T07:30:41","slug":"specifications","status":"publish","type":"page","link":"https:\/\/snowstone.co.za\/?page_id=29","title":{"rendered":"Specifications"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Header” _builder_version=”4.20.4″ _module_preset=”default” use_background_color_gradient=”on” background_color_gradient_stops=”#2b87da 0%|rgba(41,196,169,0.37) 40%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/snowstone.co.za\/wp-content\/uploads\/2023\/04\/new24.jpg” overflow-x=”hidden” overflow-y=”hidden” hover_enabled=”0″ locked=”off” collapsed=”on” global_colors_info=”{}” sticky_enabled=”0″][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.19.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.19.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.20.4″ _module_preset=”db506976-faf8-4f14-af7e-e33c2da36226″ hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n

Technical Specifications<\/span><\/h1>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.19.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/snowstone.co.za\/wp-content\/uploads\/2023\/04\/new17.png” title_text=”new17″ disabled_on=”on|off|off” _builder_version=”4.20.4″ _module_preset=”default” positioning=”absolute” position_origin_a=”center_left” width=”100%” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.20.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.20.4″ _module_preset=”default” max_width=”2560px” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.20.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.20.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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Item Number<\/strong><\/span><\/h4>\n<\/td>\n

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Description<\/strong><\/span><\/h4>\n<\/td>\n

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Specification<\/strong><\/span><\/h4>\n<\/td>\n<\/tr>\n<\/thead>\n

1<\/span><\/td>\nPumps<\/span><\/td>\n\n
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Wave powered high pressure pumps<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

2<\/span><\/td>\n\n
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Recovery<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Pelton wheel (power\/pressure recovery device – pumping)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

3<\/span><\/td>\n\n
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Sensor systems<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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SCADA (Supervisory Control and Data Acquisition)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

4<\/span><\/td>\n\n
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Controllers\u00a0<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Integrated PLC (Programmable Logic Controller) for SCADA<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

5<\/span><\/td>\n\n
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Operating temperature<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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15-32 Celsius<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

6<\/span><\/td>\n\n
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Recovery rate<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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30%<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

7<\/span><\/td>\n\n
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Energy consumption (T-27 Celsius)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Self sufficient<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

8<\/span><\/td>\n\n
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Electrical supply<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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N\/A \u2013 direct wave powered pumps<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

9<\/span><\/td>\n\n
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Power consumption<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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N\/A \u2013 self sufficient<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

10<\/span><\/td>\n\n
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Power stability<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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N\/A \u2013 wave energy regime variations mitigated with water storage supplementation<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

11<\/span><\/td>\n\n
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Production capacity<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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10,000 or 20,000 or other as required cubic meters per day<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

12<\/span><\/td>\n\n
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Production pressure<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Residual pressure from brine stream enables the re-vpressurisation of the fresh water to be pumped to an altitude of up to 500m above sea level<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

13<\/span><\/td>\n\n
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Water storage<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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3-4 hours – allocate with on-shore or other (dependent on pipeline availability)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

14<\/span><\/td>\n\n
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Water quality<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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WHO quality recommendations & South African regulations for potable water<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

15<\/span><\/td>\n\n
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Marine access<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Up to 800 meters<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

16<\/span><\/td>\n\n
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Plant height above sea level<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Up to 10 meters<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

17<\/span><\/td>\n\n
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Distance from shore<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Wave powered high pressure pumps<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

18<\/span><\/td>\n\n
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Site on-shore allocation<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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5,000 square meters on land with a pipeline connecting the shore facility with a field of wave pumps<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

19<\/span><\/td>\n\n
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Site off-shore allocation\/10m<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Seabed: Field of wave pumps approximately 800m off-shore covering an area of approximately 5000m2 of seabed<\/span><\/p>\n

Floating:Total surface area of sea that would be covered by floating devices would cover an area of 1000m2. Floatation devices are submersible and shall be slightly positively buoyant<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

20<\/span><\/td>\n\n
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Installation<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Configuration: Containerised or skid mounted<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

21<\/span><\/td>\n\n
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Saline extraction<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Up to 30,000 cubic meters per day with 1.5m sand around the intake head\/discharge diffusers @ 20 to 27 Celsius<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

22<\/span><\/td>\n\n
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Extraction depth<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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10-15 meters<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

23<\/span><\/td>\n\n
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Marine pipe type<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Shore dig and bury – entire pipeline route consists of 1m sand with no hard rocks<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

24<\/span><\/td>\n\n
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Tank size<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Approximately 4,000 cubic meters<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

25<\/span><\/td>\n\n
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Main building<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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100 to 120 square meters with Operations Center, Data Center and office space<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

26<\/span><\/td>\n\n
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SWRO housing<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Core systems for site security and communication<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

27<\/span><\/td>\n\n
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Core management systems<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Wave powered high pressure pumps<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

28<\/span><\/td>\n\n
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Operator control systems<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Operations and performance management systems<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

29<\/span><\/td>\n\n
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Marine monitoring<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Surveillance of marine installations<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

30<\/span><\/td>\n\n
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Monitoring & management<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Site and support systems for SCADA<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

31<\/span><\/td>\n\n
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Data management & integrated site data<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Plant Performance and Efficiency Data production<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

32<\/span><\/td>\n\n
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Site development<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Concrete slabs and paving<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

33<\/span><\/td>\n\n
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Plant type<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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SWRO system (Sea Water Reverse Osmosis)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

34<\/span><\/td>\n\n
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Off-shore unit capacity<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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500kLD of fresh water per day<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n

35<\/span><\/td>\n\n
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Off-shore unit sea state data<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n

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Production possible from moderate conditions of 1,4m wave height and an 18 second wave period<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Marine Requirement Specifications<\/h2>\n

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The site and other implementation pre-requisites for implementation ensure modular and fast deployment. Reasonable industry assumptions are made and changes required may result in scope variations. Meeting site criteria is essential for site selection for both plant and marine sections. The specification supports an off-shore pump system intake with physical water characteristics of TDS<36,000 ppm:<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Feed Water Parameters<\/span><\/strong><\/h4>\n<\/td>\n

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Units<\/span><\/strong><\/h4>\n<\/td>\n

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Normal<\/span><\/strong><\/h4>\n<\/td>\n

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Maximum<\/span><\/strong><\/h4>\n<\/td>\n<\/tr>\n

Turbidity<\/span><\/td>\nNTU<\/span><\/td>\n<10<\/span><\/td>\n<25<\/span><\/td>\n<\/tr>\n
TSS<\/span><\/td>\nmg\/L<\/span><\/td>\n<20<\/span><\/td>\n<50<\/span><\/td>\n<\/tr>\n
TOC<\/span><\/td>\nmg\/L<\/span><\/td>\n<5<\/span><\/td>\n<15<\/span><\/td>\n<\/tr>\n
COD<\/span><\/td>\nmg\/L<\/span><\/td>\n<15<\/span><\/td>\n<30<\/span><\/td>\n<\/tr>\n
Total oil & grease<\/span><\/td>\nmg\/L<\/span><\/td>\nNegligible<\/span><\/td>\n<1<\/span><\/td>\n<\/tr>\n
Total iron<\/span><\/td>\nmg\/L<\/span><\/td>\n<0.2<\/span><\/td>\n<\/tr>\n
Total manganese<\/span><\/td>\nmg\/L<\/span><\/td>\n<0.05<\/span><\/td>\n<\/tr>\n
Total colour<\/span><\/td>\nPt-Co\/L<\/span><\/td>\n<0.1<\/span><\/td>\n<20<\/span><\/td>\n<\/tr>\n
Total hardness as CaCO3<\/span><\/td>\nmg\/L<\/span><\/td>\n<2,000<\/span><\/td>\n<3,000<\/span><\/td>\n<\/tr>\n
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Product Water Parameters<\/strong><\/span><\/h4>\n<\/td>\n

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Units<\/strong><\/span><\/h4>\n<\/td>\n

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Expected Value<\/strong><\/span><\/h4>\n<\/td>\n<\/tr>\n

Turbidity<\/span><\/td>\nMTU<\/span><\/td>\n<0.2<\/span><\/td>\n<\/tr>\n
SDI<\/span><\/td>\n–<\/span><\/td>\n<3<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Additional Specifications<\/h2>\n

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Contribution pipes with main dual intake pipes of up to 800m terminated with a manifold connecting the pipeline to a field of wave pumps and equipped with pre-filtration systems:<\/span><\/p>\n

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    1. Buried through the surf zone
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    2. Anchored to the sea floor to a seawater depth of approximately 10~15m
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    3. Each wave pump draws its water through a pre-filtration system buried up to 6m deep in sand<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
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      Discharge:<\/span><\/p>\n

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        1. Single brine discharge pipeline of up to 500m<\/span><\/li>\n
        2. Buried through the surf zone and anchored to the sea floor<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
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