{"id":83,"date":"2021-12-02T15:50:57","date_gmt":"2021-12-02T15:50:57","guid":{"rendered":"http:\/\/swdp.co.il\/?p=83"},"modified":"2025-11-06T09:09:12","modified_gmt":"2025-11-06T09:09:12","slug":"%d7%a9%d7%99%d7%a4%d7%95%d7%a8-%d7%90%d7%99%d7%9b%d7%95%d7%aa-%d7%94%d7%a7%d7%95%d7%9c%d7%97%d7%99%d7%9f-%d7%91%d7%9e%d7%98%d7%a9","status":"publish","type":"post","link":"https:\/\/swdp.co.il\/en\/%d7%a9%d7%99%d7%a4%d7%95%d7%a8-%d7%90%d7%99%d7%9b%d7%95%d7%aa-%d7%94%d7%a7%d7%95%d7%9c%d7%97%d7%99%d7%9f-%d7%91%d7%9e%d7%98%d7%a9\/","title":{"rendered":"Improving the quality of effluent in wastewater treatment plants"},"content":{"rendered":"<p><strong>The problem<\/strong> &#8211; <\/p>\n\n\n<p><br\/>A WWTP did not achieve the water quality required for agriculture irrigation. The addition of ternary treatment takes time and the reuse is economically and ecologically important.<br\/>The WWTP does not have primary settling so that unwanted poisonous material (fats and metals) enter in the biological reactors.<\/p>\n\n\n<p><strong>The solution<\/strong><br\/>Injection of Sodium Aluminate in the biological reactor was tested.<\/p>\n\n\n<p>Related post: <a href=\"https:\/\/swdp.co.il\/en\/\u05d4\u05db\u05d3\u05d5\u05e8\u05d9\u05dd-\u05d4\u05d8\u05d5\u05d1\u05d9\u05dd-\u05d1\u05d9\u05d5\u05ea\u05e8-\u05dc\u05d4\u05d6\u05e7\u05e4\u05d4\/\">\u05d4\u05db\u05d3\u05d5\u05e8\u05d9\u05dd \u05d4\u05d8\u05d5\u05d1\u05d9\u05dd \u05d1\u05d9\u05d5\u05ea\u05e8 \u05dc\u05d4\u05d6\u05e7\u05e4\u05d4<\/a><\/p><p><strong>Results<\/strong><br\/>Within a few days, the quality of the wastewater improved significantly and the water was suitable for agricultural applications.<br\/>Stopping the addition of sodium aluminate resulted in reduced efficiency of the removal of biomass<br\/>\u05d4\u05ea\u05e7\u05d1\u05dc\u05d4 \u05d0\u05d9\u05db\u05d5\u05ea \u05e7\u05d5\u05dc\u05d7\u05d9\u05df \u05e2\u05dd \u05e2\u05e8\u05db\u05d9\u00a0 TSS \u05e0\u05de\u05d5\u05db\u05d9\u05dd \u05d2\u05dd \u05d1\u05de\u05e6\u05d1 \u05d1\u05d5 \u05ea\u05d4\u05dc\u05d9\u05da \u05d4\u05d1\u05d9\u05d5\u05dc\u05d5\u05d2\u05d9 \u05e0\u05e4\u05d2\u05e2.<br\/>Operation of the wastewater plant with sodium aluminate also reduced the phosphorous content by 50%.<\/p>\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"525\" height=\"366\" alt=\"\" class=\"wp-image-84\" src=\"http:\/\/swdp.co.il\/wp-content\/uploads\/2021\/12\/2.jpg\" srcset=\"https:\/\/swdp.co.il\/wp-content\/uploads\/2021\/12\/2.jpg 525w, https:\/\/swdp.co.il\/wp-content\/uploads\/2021\/12\/2-300x209.jpg 300w\" sizes=\"(max-width: 525px) 100vw, 525px\" \/><figcaption>Improved quality of wastewater by injection of chemicals<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>\u05ea\u05d9\u05d0\u05d5\u05e8 \u05d4\u05d1\u05e2\u05d9\u05d4 &#8211; \u05e7\u05d5\u05dc\u05d7\u05d9 \u05de\u05d8&quot;\u05e9 \u05dc\u05d0 \u05e2\u05de\u05d3\u05d5 \u05d1\u05ea\u05e7\u05e0\u05d5\u05ea \u05dc\u05e9\u05d9\u05de\u05d5\u05e9 \u05dc\u05d4\u05e9\u05e7\u05d9\u05d4 \u05d7\u05e7\u05dc\u05d0\u05d9\u05ea.\u05d4\u05e9\u05e7\u05e2\u05d4 \u05d1\u05d1\u05e0\u05d9\u05d9\u05ea \u05de\u05e2\u05e8\u05db\u05ea \u05dc\u05e9\u05d9\u05e4\u05d5\u05e8 \u05d0\u05d9\u05db\u05d5\u05ea \u05d4\u05e7\u05d5\u05dc\u05d7\u05d9\u05df \u05d3\u05d5\u05e8\u05e9\u05ea \u05d6\u05de\u05df, \u05d0\u05d9\u05e9\u05d5\u05e8\u05d9\u05dd \u05ea\u05e7\u05e6\u05d9\u05d1\u05d9\u05d9\u05dd, \u05d1\u05e0\u05d9\u05d9\u05d4 \u05d5\u05d4\u05d8\u05de\u05e2\u05d4. \u05dc\u05de\u05d8&quot;\u05e9 \u05d0\u05d9\u05df \u05d0\u05d2\u05e0\u05d9 \u05e9\u05d9\u05e7\u05d5\u05e2 \u05e8\u05d0\u05e9\u05d5\u05e0\u05d9 (\u05d4\u05e9\u05e4\u05db\u05d9\u05dd \u05d2\u05d5\u05dc\u05de\u05d9\u05d9\u05dd \u05e0\u05db\u05e0\u05e1\u05d9\u05dd \u05d9\u05e9\u05d9\u05e8\u05d5\u05ea \u05d0\u05dc \u05d4\u05e8\u05d9\u05d0\u05e7\u05d8\u05d5\u05e8 \u05d4\u05d1\u05d9\u05d5\u05dc\u05d5\u05d2\u05d9) \u05d5\u05db\u05e0\u05d9\u05e1\u05d4 \u05dc\u05d0 \u05de\u05d1\u05d5\u05e7\u05e8\u05ea \u05e9\u05dc \u05de\u05d9\u05e0\u05d9 \u05d7\u05d5\u05de\u05e8\u05d9\u05dd (\u05e9\u05d5\u05de\u05e0\u05d9\u05dd, \u05de\u05ea\u05db\u05d5\u05ea \u05db\u05d1\u05d3\u05d5\u05ea \u05d5\u05db\u05d5') \u05e2\u05dc\u05d5\u05dc\u05d9\u05dd \u05dc\u05d2\u05e8\u05d5\u05dd \u05dc\u05d4\u05e8\u05e2\u05dc\u05d5\u05ea \u05d5\u05e9\u05d9\u05e0\u05d5\u05d9\u05d9\u05dd \u05dc\u05d0 \u05de\u05d1\u05d5\u05e7\u05e8\u05d9\u05dd \u05d1\u05d0\u05d5\u05db\u05dc\u05d5\u05e1\u05d9\u05d9\u05ea \u05d4\u05e8\u05d0\u05e7\u05d8\u05d5\u05e8 \u05d4\u05d1\u05d9\u05d5\u05dc\u05d5\u05d2\u05d9 . \u05d4\u05e4\u05ea\u05e8\u05d5\u05df\u05d4\u05d5\u05e1\u05e4\u05ea [&hellip;]<\/p>","protected":false},"author":1,"featured_media":150,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-83","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u05e9\u05d9\u05e4\u05d5\u05e8 \u05d0\u05d9\u05db\u05d5\u05ea \u05d4\u05e7\u05d5\u05dc\u05d7\u05d9\u05df \u05d1\u05de\u05d8&quot;\u05e9 - \u05e1.\u05d5. \u05e4\u05d9\u05ea\u05d5\u05d7 \u05d5\u05d9\u05d6\u05de\u05d5\u05ea \u05d1\u05e2&quot;\u05de<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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