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This study was aimed to biologically treat domestic wastewater using identified bacterial consortium for chemical pollutants removal by treating/passing it through sand biofilters. The identification, toxicity test, and the optimum dose of the investigated bacterial consortium were carried out using Microtox analyzer and Batch biological treatment, respectively. Furthermore, application of sedimentation followed by gravel and sand biofilters for wastewater treatment was evaluated. The results showed that the bacterial consortium is composed of Pediococcus acidilactici , Pediococcus pentosaceus , Lactobacillus plantarum , and Bacillus subtilis . The optimum dose for wastewater treatment within 6 h of contact time is 2.5 mg/L, this dose (2.5 mg/L) has no toxic effect. The removal percentage of chemical oxygen demand (COD), biological oxygen demand (BOD), total solids (TS), total dissolved solids (TDS), total suspended solids (TSS), ammonia, nitrate, total Kjeldahl nitrogen (TKN), and oil and grease reached 93.4, 83.5, 37.5, 49.2, 93.4, 100, 55.7, 76.6, and 76% in the effluent of the treated wastewater, respectively after the third sand biofilter filtration. It can be concluded that using bacterial consortium for domestic wastewater treatment could be a good tool for chemical pollutants removal. Moreover, this study provides low cost and eco-friendly tool for domestic wastewater treatment using simple multistage biofilters based on an identified bacterial consortium. This system can be upscaled for the treatment of larger volumes of wastewater.

This dissertation studies two topics in Riemannian geometry.First, we study the existence of totally geodesic submanifolds in Riemannian 3-manifolds. Murphy and Wilhelm showed that a generic closed Riemannian manifold has no totally geodesic submanifolds, provided the ambient space is at least four dimensional. We show that the set of metrics that admit totally geodesic submanifolds on a compact 3-manifold actually contains a set that is open and dense set in the Cq -topology, provided q ≥ 3.Second, we study the preservation of positive intermediate Ricci curvature under Riemannian submersions. Pro and Wilhelm showed that there are Riemannian submersions π : M → B with M a compact manifold with positive Ricci curvature, whose b-dimensional base has Ricci curvatures with both signs. We show that if Rick(M) > 0, then Rick(B) must be positive if k ∈ {1, 2, · · · , b − 1}, yet Ric(B) need not be positive if k = b.

Coming clean. LOS ANGELES COUNTY. 2 South Bay firms will get blackout exemptions. Beach cities preschool applications available. 4 `courageous citizens' are honored for actions. Coming clean. LOS ANGELES COUNTY. 2 South Bay firms will get blackout exemptions. Beach cities preschool applications available. Coming clean. LOS ANGELES COUNTY. 2 South Bay firms will get blackout exemptions. Coming clean. LOS ANGELES COUNTY. Coming clean

\"As long as we're running the trade deficit and Los Angeles remains the main entry point (to Asia), and Asian companies continue to excel in manufacturing, yes, it's going to continue,\" [Eduardo J. Martinez] said of port traffic growth. \"It becomes a political process ... that may drag out,\" Martinez said. \"The pressure in the room is not going away. It's actually increasing. So it gives it a bit of urgency.\" Even without an increase in capacity, shippers from Asia have few options beyond the twin ports because other Western U.S. ports \"don't have the capacity,\" Martinez said.

\"The mixed asphalt and existing asphalt are fused together to avoid seams,\" he said. \"In the typical asphalt repair, you have a seam, which allows for moisture infiltration over time, which degrades the patch and it will cause the patch to fail. Therefore, you have a pothole within six to nine months after repair. We consider our repair to be a permanent repair.\" \"We heard about them through another city,\" said Bassam Alzammar, Redlands' water superintendent. \"I've never seen anything like it before. This was the first time we've ever done anything like that here and I figured we'd try it and see what it's like and if it saves money. So far, it looks good. It's holding up. But it's only a month old so really time will tell if it actually holds up longer than the conventional way of doing things.\" \"Asphalt repair and pothole restoration is a huge market,\" he said. \"My passion is business, the challenge of developing business opportunities in the service sector I know, which is commercial and building services that this is a part of.\"

\"The mixed asphalt and existing asphalt are fused together to avoid seams,\" he said. \"In the typical asphalt repair, you have a seam, which allows for moisture infiltration over time, which degrades the patch and it will cause the patch to fail. Therefore, you have a pothole within six to nine months after repair. We consider our repair to be a permanent repair.\" \"We heard about them through another city,\" said Bassam Alzammar, Redlands' water superintendent. \"I've never seen anything like it before. This was the first time we've ever done anything like that here and I figured we'd try it and see what it's like and if it saves money. So far, it looks good. It's holding up. But it's only a month old so really time will tell if it actually holds up longer than the conventional way of doing things.\" \"Asphalt repair and pothole restoration is a huge market,\" he said. \"My passion is business, the challenge of developing business opportunities in the service sector I know, which is commercial and building services that this is a part of.\"

\"The mixed asphalt and existing asphalt are fused together to avoid seams,\" he said. \"In the typical asphalt repair, you have a seam, which allows for moisture infiltration over time, which degrades the patch and it will cause the patch to fail. Therefore, you have a pothole within six to nine months after repair. We consider our repair to be a permanent repair.\" \"We heard about them through another city,\" said Bassam Alzammar, Redlands' water superintendent. \"I've never seen anything like it before. This was the first time we've ever done anything like that here and I figured we'd try it and see what it's like and if it saves money. So far, it looks good. It's holding up. But it's only a month old so really time will tell if it actually holds up longer than the conventional way of doing things.\" \"Asphalt repair and pothole restoration is a huge market,\" he said. \"My passion is business, the challenge of developing business opportunities in the service sector I know, which is commercial and building services that this is a part of.\"

\"I would rather say 'my dad's a journalist' than 'my dad's a restaurant cook,'\" our teen son, Hasan, told me.

\"The illegal drink solicitation scheme involved bar servers who placed a surcharge on alcoholic beverages in exchange for keeping male patrons company,\" ABC said in a statement. \"Such practices can contribute to the over-service of alcohol and possibly other violations of law.\"

\"Marina Del Rey Hospital is in an exciting period of change, and the hire of our new CEO continues the spirit of strategic investment and innovation we have focused on within (the) last decade,\" said Thomas Wafer, chairman of the hospital's board, in a statement. \"[Sean Fowler] is a seasoned professional who brings the expertise, leadership and vision to guide our hospital now, and ensure our success into the future.\" In a statement, the hospital said: \"Under Fowler's leadership, Marina Del Rey Hospital will continue to move forward as a nationally recognized center of surgical excellence and a local provider of 24/7 emergency care.\"