{"id":9513,"date":"2023-05-26T09:58:30","date_gmt":"2023-05-26T02:58:30","guid":{"rendered":"https:\/\/arkvietnam.com\/?p=9513"},"modified":"2023-05-26T10:06:10","modified_gmt":"2023-05-26T03:06:10","slug":"confectionery-wastewater-treatment-an-overview-of-a-complex-system","status":"publish","type":"post","link":"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/","title":{"rendered":"Confectionery wastewater treatment \u2013 an overview of a complex system"},"content":{"rendered":"<p>Confectionery wastewater treatment is a difficult problem posed in the context of the confectionery industry in our country has grown strongly in recent years.<\/p>\n<p>Not only serving a huge population that has reached 100 million people, but the confectionery industry in Vietnam also has great export prospects with promising consumption markets in China, Southeast Asia, Europe, and <a href=\"https:\/\/vi.wikipedia.org\/wiki\/B%E1%BA%AFc_M%E1%BB%B9\" target=\"_blank\" rel=\"noopener\">North America<\/a>. Accompanying all production industries, there are always issues related to the environment, especially in confectionery wastewater treatment.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-9520 aligncenter\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-1024x640.jpg\" alt=\"nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t b\u00e1nh k\u1eb9o\" width=\"1020\" height=\"638\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-1024x640.jpg 1024w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-510x319.jpg 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-300x188.jpg 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-768x480.jpg 768w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-18x12.jpg 18w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo-600x375.jpg 600w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/nha-may-san-xuat-banh-keo.jpg 1400w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><br \/>\nExperts commented that: <em>\"If an appropriate, immediate and effective solution is not found, environmental problems will accumulate, leading to an unfortunate consequence\".<\/em> Therefore, as a business investor, or an environmental engineer, do you have an overview of the ingredients, as well as the process of treating confectionery wastewater? Let's find out with <a href=\"https:\/\/arkvietnam.com\/en\/\">ARK Vietnam<\/a> below.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#San_xuat_banh_keo_%E2%80%93_start_up_ky_lan_cua_thap_ky_moi\" >Confectionery production \u2013 unicorn start-up of the new decade<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Nuoc_thai_banh_keo_tu_dau_ma_co\" >Confectionery wastewater, where does it come from?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Nhung_thanh_phan_trong_nuoc_thai_banh_keo\" >Ingredients in confectionery wastewater<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Cong_nghe_xu_ly_nuoc_thai_banh_keo\" >Confectionery wastewater treatment technology<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Nguyen_ly_hoat_dong\" >Principle of operation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#1_Be_tach_dau\" >1. Oil separator tank<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#2_Be_dieu_hoa\" >2. Air conditioning tank<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#3_Cong_nghe_vi_sinh_AAO\" >3. Microbiological Technology AAO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#4_Be_lang\" >4. Sedimentation tank<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#5_Be_khu_trung\" >5. Sterilization tank<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Uu_nhuoc_diem_cua_quy_trinh_xu_ly_nuoc_thai_banh_keo\" >Advantages and disadvantages of confectionery wastewater treatment process<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Uu_diem\" >Advantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/arkvietnam.com\/en\/xu-ly-nuoc-thai-banh-keo-tong-quan-ve-1-he-thong-phuc-tap\/#Nhuoc_diem\" >Disadvantages<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"San_xuat_banh_keo_%E2%80%93_start_up_ky_lan_cua_thap_ky_moi\"><\/span>Confectionery production \u2013 unicorn start-up of the new decade<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Confectionery must have been familiar to us since our childhood days. The confectionery industry also follows the momentum of integration and develops continuously.<\/p>\n<p>This is considered one of the essential manufacturing industries today. Indeed, because the demand for this item is immense. You see candies in every holiday, Tet, festival, party, religious activity, and daily life.<\/p>\n<p>Confectionery is also a traditional craft with specialties for each region and each locality. Each place has its advantages and strengths in terms of confectionery, in parallel with confectionery on modern Western chains. Our country advocates not only for domestic development but also for this industry to be encouraged to export to the world market.<\/p>\n<p>The large source of income entails a large amount of investment, solving an important part of jobs for a large class of Vietnamese workers. However, every coin has 2 sides, along with super benefits, we are facing serious environmental pollution caused by confectionery wastewater.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nuoc_thai_banh_keo_tu_dau_ma_co\"><\/span>Confectionery wastewater, where does it come from?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"translation-block\">There are two basic sources of wastewater \u2013 which I have to use two words: \u201ccomplex\u201d and \u201cstubborn\u201d in treatment:<\/p>\n<ol>\n<li class=\"translation-block\">The first source is in production: All confectionery production processes from traditional to modern have to go through the stages of preliminary processing, cooking of ingredients, packaging, and cleaning of machines. Since then, wastewater begins to generate huge volumes.<\/li>\n<li class=\"translation-block\">In daily life: Wastewater comes from the activities of employees in the toilets, dining areas, dormitories, etc. In the cooling and cooling stages of the industrial machinery system. A confectionery factory has a large number of workers and machines. They are also concentrated in complexes with the joint venture investment of foreign confectionery groups.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_thanh_phan_trong_nuoc_thai_banh_keo\"><\/span>Ingredients in confectionery wastewater<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Why, at the beginning of the article, has emphasized the danger and urgency of this type of wastewater. Before going to learn about the technological process of confectionery wastewater treatment, let's find out why its composition and properties are so complicated.<\/p>\n<p>Different from other common wastewater, confectionery wastewater has different compositions depending on each input material. There are millions of different candies with billions of ingredients.<\/p>\n<p>However, they still have in common that they contain a very high concentration of organic pollutants. Suspended solids (SS), fats, oils, and greases lead to a large chemical oxygen demand (COD) which makes the treatment process very time-consuming and costly.<\/p>\n<table>\n<colgroup>\n<col \/>\n<col \/>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<td rowspan=\"2\">\n<p dir=\"ltr\"><strong>Parameter<\/strong><\/p>\n<\/td>\n<td rowspan=\"2\">\n<p dir=\"ltr\"><strong>Unit<\/strong><\/p>\n<\/td>\n<td rowspan=\"2\">\n<p dir=\"ltr\"><strong>First value<\/strong><\/p>\n<\/td>\n<td colspan=\"2\">\n<p dir=\"ltr\"><strong>QCVN 40:2011\/BTNMT<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\"><strong>Column A<\/strong><\/p>\n<\/td>\n<td>\n<p dir=\"ltr\"><strong>Column B<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">pH<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">&#8211;<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">5,5 &#8211; 10,5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">6 &#8211; 9<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">5,5 &#8211; 9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">BOD5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">1200<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">30<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">50<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">COD<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">1850<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">75<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">150<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">TSS<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">500<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">50<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">100<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">Total Nito<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">42<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">20<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">40<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">Total Phosphorus<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">9,5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">4<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">6<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">Grease<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">mg\/l<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">150<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">10<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">Total Coliforms<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">MPN\/100ml<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">10^4 &#8211; 10^5<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">3000<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">5000<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Detailed composition table of confectionery production wastewater<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cong_nghe_xu_ly_nuoc_thai_banh_keo\"><\/span>Confectionery wastewater treatment technology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 c\u00f3 m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u00e1nh k\u1eb9o th\u1eadt hi\u1ec7u qu\u1ea3, th\u1eadt ti\u1ebft ki\u1ec7m, nhi\u1ec1u doanh nghi\u1ec7p s\u1ea3n xu\u1ea5t b\u00e1nh k\u1eb9o hi\u1ec7n nay \u0111ang \u00e1p d\u1ee5ng d\u00e2y chuy\u1ec1n x\u1eed l\u00fd v\u1edbi s\u01a1 \u0111\u1ed3, c\u0169ng nh\u01b0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c lo\u1ea1i m\u00e1y m\u00f3c nh\u01b0 sau:<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_9518\" aria-describedby=\"caption-attachment-9518\" style=\"width: 602px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9518 size-full\" src=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo.png\" alt=\"S\u01a1 \u0111\u1ed3 c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u00e1nh k\u1eb9o\" width=\"602\" height=\"513\" srcset=\"https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo.png 602w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo-510x435.png 510w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo-300x256.png 300w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo-14x12.png 14w, https:\/\/arkvietnam.com\/wp-content\/uploads\/2023\/05\/so-do-xu-ly-nuoc-thai-banh-keo-600x511.png 600w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><figcaption id=\"caption-attachment-9518\" class=\"wp-caption-text\"><em>S\u01a1 \u0111\u1ed3 c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u00e1nh k\u1eb9o<\/em><\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Nguyen_ly_hoat_dong\"><\/span>Principle of operation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>According to the mentioned two sources, confectionery wastewater in the production line will be collected directly from the collection tanks. While domestic wastewater will go through the necrosis tank and then be taken to the collection tank.<\/p>\n<p>After that, the confectionery wastewater will be pumped in turn to the tanks to serve the treatment process. A series of processes will include an oil separation tank, conditioning tank, AAO microbiological technology, settling tank, and sterilization tank.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Be_tach_dau\"><\/span>1. Oil separator tank<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Wastewater after collection will be pumped directly into the oil tank, to remove the grease floating on the water surface. Grease is insoluble in water, so it can be easily removed to avoid damage to machinery.<\/p>\n<p>If oil separation is neglected or performed inefficiently, pump clogging and inhibition of biochemical microbial activity are certain.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Be_dieu_hoa\"><\/span>2. Air conditioning tank<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Regulating the concentration of pollution and balancing the confectionery wastewater flow is the task that the conditioning tank undertakes. At the tank, air will be supplied from the air blower system to continuously stir, prevent the growth and decomposition of microorganisms that cause stench, and at the same time generate many unpredictable toxic substances.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Cong_nghe_vi_sinh_AAO\"><\/span>3. Microbiological Technology AAO<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Wastewater passing through these two tanks is also the end of the preliminary process in confectionery wastewater treatment. This is only a mechanical treatment process, so the content of organic pollutants in wastewater is still very high. At this time, biochemical technology with the microbiological agent AAO will be used to remove them.<\/p>\n<p>This technology is a combination of three tanks: anaerobic, anaerobic, and aerobic. Through that, organic pollutants will be decomposed and converted into CO2, H2O, beneficial microorganisms, etc. At the same time, the stench in the confectionery wastewater will no longer exist.<\/p>\n<p>The chains of biochemical and oxidative reactions take place extremely complex leading to increased biomass of specific microorganisms.<\/p>\n<p>The key to this stage is to select microorganisms that are capable of good treatment of pollutants present in wastewater<\/p>\n<p>Biological methods of wastewater treatment based on microbial activity. Therefore, for the wastewater treatment process to achieve optimal efficiency, shorten the operating time, culture, and microbiological quality are the core factors that wastewater treatment system operators need to understand. . Microorganisms need to meet the following conditions:<\/p>\n<ul>\n<li class=\"translation-block\">Quick activation (liquid will activate better).<\/li>\n<li>100% working rate.<\/li>\n<li>Strong activity, can decompose difficult to decompose organic substances.<\/li>\n<li>Good adaptability to many environments.<\/li>\n<li>Easy to use, store, and culture.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4_Be_lang\"><\/span>4. Sedimentation tank<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In the next stage, wastewater will continue to be brought to the settling tank to remove the microbial biomass just created above. Thanks to gravity, the flocs will gradually settle to the bottom of the tank. The above water will automatically be decanted to be taken to the sterilization tank.<\/p>\n<p>Part of the sludge will be returned to the Aerotank tank to maintain the concentration of microorganisms in the tank, helping the biochemical reaction chain to be maintained continuously. The remainder will be taken to the sludge tank and periodically removed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Be_khu_trung\"><\/span>5. Sterilization tank<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The amount of confectionery wastewater is now relatively up to some standards, the disinfection tank is near the end. People pump here a suitable rate of chlorine to destroy coliform, dangerous bacteria that cannot be destroyed in the above tanks. Excess chlorine must be removed because chlorine is, after all, a common carcinogen.<\/p>\n<p>After that, wastewater will be discharged into the environment according to the discharge standards prescribed by the State.<\/p>\n<p>Confectionery production wastewater after treatment is mainly used for the following purposes:<\/p>\n<ul>\n<li>Agricultural irrigation.<\/li>\n<li>Watering plants, washing floors, washing roads, washing cars.<\/li>\n<li>Reusable in several industries.<\/li>\n<li>Give water to the reservoir to create a landscape.<\/li>\n<li>Use for circulation or other purposes.<\/li>\n<\/ul>\n<p class=\"translation-block\">The sludge in the sludge storage tank is pumped into the <a href=\"\/en\/product-category\/may-ep-bun\" target=\"_self\">sludge dewatering machines<\/a>, removing the water, and reducing the volume of the sludge. Dry sludge is collected and treated periodically. In the sludge tank, the air is supplied to reduce the odor generated.<\/p>\n<p class=\"translation-block\">The water after passing through the pressure filter tank meets the discharge standards to the receiving source by the regulations <a href=\"https:\/\/thuvienphapluat.vn\/TCVN\/Tai-nguyen-Moi-truong\/QCVN-40-2011-BTNMT-nuoc-thai-cong-nghiep-901389.aspx\" target=\"_self\" rel=\"noopener\">QCVN 40:2011\/BTNMT<\/a> column A.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Uu_nhuoc_diem_cua_quy_trinh_xu_ly_nuoc_thai_banh_keo\"><\/span>Advantages and disadvantages of confectionery wastewater treatment process<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>No matter how advanced a wastewater treatment process is, it cannot avoid certain limitations. Please list a few of the most obvious features<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Uu_diem\"><\/span>Advantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>High efficiency in the treatment of organic pollutants in wastewater. Reduce BOD, COD, Nitro... effectively.<\/li>\n<li>This system is highly appreciated and becomes an optimal system today both in terms of technology and cost.<\/li>\n<li>The scale of the confectionery wastewater treatment plant is not too large, and the above process is stable and not too complicated.<\/li>\n<li>Construction, operation, and maintenance costs are not too large, and relatively suitable in the context of an economic downturn.<\/li>\n<li>The concentration of pollutants meets the standards according to the current output standards of the State.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Nhuoc_diem\"><\/span>Disadvantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Impurities such as sludge, grease, or solids are removed, and there will be a complex separate treatment process and new investment.<\/li>\n<\/ul>\n<p class=\"translation-block\">Therefore, when your business invests in the field of confectionery production, do not ignore the reference and assessment of the advantages and disadvantages of the processing process. And let's not forget <a href=\"https:\/\/arkvietnam.com\/en\" target=\"_self\">ARK Vietnam<\/a>, we are proud to be a professional and reputable unit in the production, consulting, and installation support of high-quality mud presses.<\/p>","protected":false},"excerpt":{"rendered":"<p>X\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i b\u00e1nh k\u1eb9o l\u00e0 b\u00e0i to\u00e1n h\u00f3c b\u00faa \u0111\u01b0\u1ee3c \u0111\u1eb7t ra trong b\u1ed1i c\u1ea3nh ng\u00e0nh s\u1ea3n xu\u1ea5t b\u00e1nh k\u1eb9o c\u1ee7a n\u01b0\u1edbc ta ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y. Kh\u00f4ng ch\u1ec9 ph\u1ee5c v\u1ee5 l\u01b0\u1ee3ng d\u00e2n s\u1ed1 kh\u1ed5ng l\u1ed3 \u0111\u00e3 \u0111\u1ea1t m\u1ed1c 100 tri\u1ec7u ng\u01b0\u1eddi th\u00ec ng\u00e0nh b\u00e1nh k\u1eb9o&#8230;<\/p>","protected":false},"author":1,"featured_media":9520,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-9513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts\/9513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=9513"}],"version-history":[{"count":0,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/posts\/9513\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/media\/9520"}],"wp:attachment":[{"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=9513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=9513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arkvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=9513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}