{"id":668,"date":"2013-02-04T12:29:07","date_gmt":"2013-02-04T04:29:07","guid":{"rendered":"http:\/\/people.utm.my\/mfadhil\/?page_id=668"},"modified":"2013-07-08T08:33:26","modified_gmt":"2013-07-08T00:33:26","slug":"ken-farm-sdn-bhd-seaweed-project","status":"publish","type":"page","link":"https:\/\/people.utm.my\/mfadhil\/ken-farm-sdn-bhd-seaweed-project\/","title":{"rendered":"Ken Farm Sdn Bhd and Fisheries Research Institute (Seaweed Project)"},"content":{"rendered":"

\"20120705_121449\"<\/a>\"20120705_121657\"<\/a>\"20120705_122410\"<\/a>\"20120705_130059\"<\/a>\"20120705_130246\"<\/a>\"20120705_125200\"<\/a><\/p>\n

The company \u00a0is situated at Merlimau, Melaka’s shrimp cultures and no further intention to commercialize the seaweed project. As the seaweed cultivation from shrimp pond is dominated for livestock and pharmaceutical products, the collaboration is targeted to commercialize as extraction for precious metal recovery from waste. The extracted seaweed is promising in combining of ion-exchange formulae and the cheapest method at electroplating industry. The project collaboration is to establish a pilot scale cultivation at shrimp pond culture as initiative of “Bioremediation and Reclaimation” to the existing commercial shrimp cultures. At first, Ken Farm Sdn Bhd is agreed to initiate the project with 3 years duration.<\/p>\n

\"P1060810\"<\/a>\"P1060819\"<\/a>\"P1060813\"<\/a>\"P1060824\"<\/a>\"P1060831\"<\/a>\"20110221325\"<\/a><\/p>\n

Joint-collaboration with Fisheries Research Institute (FRI) of Gelang Patah, regarding the seaweed programme. At the moment, FRI, Gelang Patah signing an agreement document with IPASA, UTM to initiate the project of massive cultivation of seaweed in pond and tank fabrication as initial pilot scale development. The project was established a networking with SDC (Seaweed Development Centre) under the initiative of Ministry of Agricultural (MoA) and Centre of National Seaweed Alliance in Pulau Sayak, Kedah<\/p>\n

\"P1030399\"<\/a>\"P1030388\"<\/a>\"P1030439\"<\/a>\"P1030442\"<\/a>\"P1030456\"<\/a>\"P1030447\"\"P1030444\"<\/a>\"P1030454\"<\/a>\"P1030452\"<\/a><\/a><\/p>\n

Seminar on National Seaweed Mini Estate in Tawau, Sabah – one officer of FRI was joint as PhD student in UTM<\/p>\n

<\/p>\n

BIOREMEDIATION OF SHRIMP POND EFFLUENT USING SEAWEEDS AND\u00a0<\/b>BIO-FILTER TO PROMOTE ZERO DISCHARGE EFFLUENT SYSTEM<\/b><\/p>\n

\"20110221320\"<\/a>\"20110221325\"<\/a>\"20110221323\"<\/a><\/p>\n

Present intensive shrimp farming methods result in the discharge of significant amounts of nutrients into adjacent waterways. A high proportion of these nutrients originate from the commercial feed (Briggs and Funge-Smith, 1994). This is especially the case for nitrogen (N), due to the high protein content of shrimp feeds (i.e more than 40 % protein for commercial tiger shrimp (Penaeus<\/i> monodon<\/i>). Previous studies of intensive shrimp farms in Thailand found that only 21% of the shrimp feed N was recovered as harvested shrimp while 35% was discharged to the environment (Briggs and Funge-Smith, 1994). Likewise, studies of semi-intensive farms in Honduras showed that 72% of the N entering the ponds was discharged to the environment as a result of water exchange (Teichert-Coddington et al., 2000). The discharge of waste N from shrimp farms directly into adjacent environments has raised concerns globally about adverse environmental impacts stemming from such practices (Naylor et al., 2000).<\/p>\n

Reducing the negative environmental impacts associated with aquaculture activities is a key to ensuring the long-term sustainability of the industry. One potential avenue is the increased use of land-based recirculating aquaculture systems (RAS). Such systems allow more effective control of culture conditions, and permit many negative impacts on the surrounding environment to be minimised \u00a0\u00a0\u00a0\u00a0 (Piedrahita, 2003). Waste products can be contained within the facility, habitat degradation is decreased or eliminated and decreased interaction between culture organisms and wild organisms prevents spread of \u00a0\u00a0\u00a0 disease or escape of exotic species (Emerson, 1999). However, the accumulation of nitrogenous wastes is a major drawback of RAS (Wright, 1995). Therefore, some form of filtration is required to keep these wastes below the levels that cause biological and economic harm.<\/p>\n

Traditionally, \u00a0 biofilm filtration has been employed to control ammonium \u00a0 concentrations (Greiner and Timmons, 1998). \u00a0\u00a0Such systems exploit the action of \u00a0Nitrosomonas<\/i> and \u00a0\u00a0 Nitrobacter<\/i> bacteria (Watten and Sirbrell, 2006), which work in tandem to oxidise highly toxic ammonium to largely inert nitrate in a two part process. However, this system has several disadvantages because i) nitrifying bacteria compete with the \u00a0\u00a0 culture species for oxygen (Greiner and Timmons, 1998) \u00a0ii) nitrate \u00a0can \u00a0be \u00a0converted \u00a0to the highly toxic compound nitrite under anoxic conditions \u00a0\u00a0\u00a0 (Watten and Sirbrell, 2006) \u00a0\u00a0 and \u00a0iii) systems using biofilm filtration typically acidify over time due to respiration of both the culture species and the biofilm (Van Rijn, 1996).These factors can all contribute \u00a0to decrease on survival, growth and reproduction of the culture organism. Additionally, \u00a0 the complexity of any biofiltration comes at a significant financial cost. It is this added\u00a0cost that has prevented bacterial-based intensive aquaculture technologies from producing large quantities of fish or shrimp at competitive prices. Furthermore, while \u00a0 bacterial biofilter technologies are suitable for relatively small intensive land-based cultures of high-valued fish species, to date, there is no information available as to how such technologies can be integrated into large-scale low-cost fish or shrimp production in ponds.<\/p>\n

Scope of Study<\/span><\/strong><\/p>\n

The research work will be conducted at Fisheries Research Institute (FRI), Gelang Patah.The main aim of the study is to treat the shrimp pond effluent to maintain adequate water quality for shrimp culture. In order to achieve the target of zero discharge effluent, study will be undertaken into two phases.<\/p>\n

Fisrt phase: The first phase of the experiment is to evaluate potential of\u00a0 locally available Gracilaria sp<\/i>. i.e Graciliaria edulis and Gracilaria changii<\/i> for bioremediation of nutrient from shrimp pond. The experiment will be conducted outside the laboratory so that the light and temperature conditions would be\u00a0 similar to those in the field. The seaweeds will then be introduce into the mini set-up of seaweed tank recirculating system that will be fabricated at the FRI, Gelang Patah. \u00a0The re-circulating water system consists of fibreglass tanks, seaweeds and bio-sand filter. This on-site treatment system will pump the shrimp pond effluent via bio-sand filter (BSF) to the seaweed culture tanks. BSF will helps to reduce the turbidity, suspended solid of the pond effluent and also the problem of epiphytes in the seaweeds culture tanks. \u00a0BSF is a biological filter using natural and cheap filtering materials such as gravels and sand. The system will consistently maintain its continuous flow by recirculating the effluent of shrimp pond to seaweeds tanks to ensure it obtain sufficient nutrient for growth besides acting as a biofilter. Nutrients and targeted pollutants absorbed by the seaweed will be monitored and analysed.<\/p>\n

Second phase. Once the first phase experiments completed, then, the study will be carried out in a pilot scale system. In the pilot scale system , a shrimp ponds with an area of 0.25 ha will be used. The size of the seaweeds pond and bio-sand filter will be calculated base on the result of the first phase experiment. The experiment will be conducted for a period of four month i.e. one culture cycle. The water quality parameters will be monitored weekly.<\/p>\n","protected":false},"excerpt":{"rendered":"

The company \u00a0is situated at Merlimau, Melaka’s shrimp cultures and no further intention to commercialize the seaweed project. As the seaweed cultivation from shrimp pond is dominated for livestock and pharmaceutical products, the collaboration is targeted to commercialize as extraction for precious metal recovery from waste. The extracted seaweed is promising in combining of ion-exchange […]<\/p>\n","protected":false},"author":124,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-668","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/pages\/668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/users\/124"}],"replies":[{"embeddable":true,"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/comments?post=668"}],"version-history":[{"count":0,"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/pages\/668\/revisions"}],"wp:attachment":[{"href":"https:\/\/people.utm.my\/mfadhil\/wp-json\/wp\/v2\/media?parent=668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}